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Evidence of a J/ψΛstructure and observation of excited■^(-)states in the■b^(-)→J/ψΛK^(-) decay 被引量：2
1
作者 R.Aaij C.Abellán Beteta +966 位作者 T.Ackernley B.Adeva m.Adinolfi H.Afsharnia C.A.Aidala S.Aiola Z.Ajaltouni S.Akar J.Albrecht F.Alessio m.Alexander A.Alfonso Albero Z.Aliouche G.Alkhazov P.Alvarez Cartelle S.Amato Y.Amhis L.An L.Anderlini A.Andreianov m.Andreotti F.Archilli A.Artamonov m.Artuso k.Arzymatov E.Aslanides m.Atzeni B.Audurier S.Bachmann m.Bachmayer J.J.Back S.Baker P.Baladron Rodriguez V.Balagura W.Baldini J.Baptista Leite R.J.Barlow S.Barsuk W.Barter m.Bartolini F.Baryshnikov J.m.Basels G.Bassi B.Batsukh A.Battig A.Bay m.Becker F.Bedeschi I.Bediaga A.Beiter V.Belavin S.Belin V.Bellee k.Belous I.Belov I.Belyaev G.Bencivenni E.Ben-Haim A.Berezhnoy R.Bernet D.Berninghoff H.C.Bernstein C.Bertella E.Bertholet A.Bertolin C.Betancourt F.Betti Ia.Bezshyiko S.Bhasin J.Bhom L.Bian m.S.Bieker S.Bifani P.Billoir m.Birch F.C.R.Bishop A.Bizzeti m.Bj┆rn m.P.Blago T.Blake F.Blanc S.Blusk D.Bobulska J.A.Boelhauve O.Boente Garcia T.Boettcher A.Boldyrev A.Bondar N.Bondar S.Borghi m.Borisyak m.Borsato J.T.Borsuk S.A.Bouchiba T.J.V.Bowcock A.Boyer C.Bozzi m.J.Bradley S.Braun A.Brea Rodriguez m.Brodski J.Brodzicka A.Brossa Gonzalo D.Brundu A.Buonaura C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Calabrese L.Calefice L.Calero Diaz S.Cali R.Calladine m.Calvi m.Calvo Gomez P.Camargo magalhaes A.Camboni P.Campana A.F.Campoverde Quezada S.Capelli L.Capriotti A.Carbone G.Carboni R.Cardinale A.Cardini I.Carli P.Carniti L.Carus k.Carvalho Ak.ba A.Casais Vidal G.Casse m.Cattaneo G.Cavallero S.Celani J.Cerasoli A.J.Chadwick m.G.Chapman m.Charles Ph.Charpentier G.Chatzikonstantinidis C.A.Chavez Barajas m.Chefdeville C.Chen S.Chen A.Chernov S.-G.Chitic V.Chobanova S.Cholak m.Chrzaszcz A.Chubykin V.Chulikov P.Ciambrone m.F.Cicala X.Cid Vidal G.Ciezarek P.E.L.Clarke m.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan E.Cogneras L.Cojocariu P.Collins T.Colombo L.Congedo A.Contu N.Cooke G.Coombs G.Corti C.m.Costa Sobral B.Couturier D.C.Craik J.Crkovská m.Cruz Torres R.Currie C.L.Da Silva E.Dall’Occo J.Dalseno C.D’Ambrosio A.Danilina P.d’Argent A.Davis O.De Aguiar Francisco k.De Bruyn S.De Capua m.De Cian J.m.De.miranda L.De Paula m.De Serio D.De Simone P.De Simone J.A.de Vries C.T.Dean W.Dean D.Decamp L.Del Buono B.Delaney H.-P.Dembinski A.Dendek V.Denysenko D.Derkach O.Deschamps F.Desse F.Dettori B.Dey P.Di Nezza S.Didenko L.Dieste maronas H.Dijkstra V.Dobishuk A.m.Donohoe F.Dordei A.C.dos Reis L.Douglas A.Dovbnya A.G.Downes k.Dreimanis m.W.Dudek L.Dufour V.Duk P.Durante J.m.Durh.m D.Dutta m.Dziewiecki A.Dziurda A.Dzyuba S.Easo U.Egede V.Egorychev S.Eidelman S.Eisenhardt S.Ek-In L.Eklund S.Ely A.Ene E.Epple S.Escher J.Eschle S.Esen T.Evans A.Falabella J.Fan Y.Fan B.Fang N.Farley S.Farry D.Fazzini P.Fedin m.Féo P.Fernandez Declara A.Fernandez Prieto J.m.Fernandeztenllado Arribas F.Ferrari L.Ferreira Lopes F.Ferreira Rodrigues S.Ferreres Sole m.Ferrillo m.Ferro-Luzzi S.Filippov R.A.Fini m.Fiorini m.Firlej k.m.Fischer C.Fitzpatrick T.Fiutowski F.Fleuret m.Fontana F.Fontanelli R.Forty V.Franco Lima m.Franco Sevilla m.Frank E.Franzoso G.Frau C.Frei D.A.Friday J.Fu Q.Fuehring W.Funk E.Gabriel T.Gaintseva A.Gallas Torreira D.Galli S.Gambetta Y.Gan m.Gandelman P.Gandini Y.Gao m.Garau L.m.Garcia.martin P.Garcia moreno J.García Pardiñas B.Garcia Plana F.A.Garcia Rosales L.Garrido C.Gaspar R.E.Geertsema D.Gerick L.L.Gerken E.Gersabeck m.Gersabeck T.Gershon D.Gerstel Ph.Ghez V.Gibson m.Giovannetti A.Gioventù P.Gironella Gironell L.Giubega C.Giugliano k.Gizdov E.L.Gkougkousis V.V.Gligorov C.Göbel E.Golo-bardes D.Golubkov A.Golutvin A.Gomes S.Gomez Fernandez F.Goncalves Abrantes m.Goncerz G.Gong P.Gorbounov I.V.Gorelov C.Gotti E.Govorkova J.P.Grabowski R.Graciani Diaz T.Grammatico L.A.Granado Cardoso E.Graugés E.Graverini G.Graziani A.Grecu L.m.Greeven P.Griffith L.Grillo S.Gromov B.R.Gruberg Cazon C.Gu m.Guarise P.A.Günther E.Gushchin A.Guth Y.Guz T.Gys T.Hadavizadeh G.Haefeli C.Haen J.Haimberger T.Halewood-leagas P.m.H.milton Q.Han X.Han T.H.Hancock S.Hansmann-menzemer N.Harnew T.Harrison C.Hasse m.Hatch J.He m.Hecker k.Heijhoff k.Heinick. A.m.Hennequin k.Hennessy L.Henry J.Heuel A.Hicheur D.Hill m.Hilton S.E.Hollitt J.Hu J.Hu W.Hu W.Huang X.Huang W.Hulsbergen R.J.Hunter m.Hushchyn D.Hutchcroft D.Hynds P.Ibis m.Idzik D.Ilin P.Ilten A.Inglessi A.Ishteev k.Ivshin R.Jacobsson S.Jakobsen E.Jans B.k.Jashal A.Jawahery V.Jevtic m.Jezabek F.Jiang m.John D.Johnson C.R.Jones T.P.Jones B.Jost N.Jurik S.kandybei Y.kang m.karacson m.karpov N.kazeev F.keizer m.kenzie T.ketel B.khanji A.kharisova S.kholodenko k.E.k.m T.kirn V.S.kirsebom O.kitouni S.klaver k.k.imaszewsk. S.koliiev A.kondybayeva A.konoplyannikov P.kopciewicz R.kopecna P.koppenburg m.korolev I.kostiuk O.kot S.kotriakhova P.kravchenko L.kravchuk R.D.krawczyk m.kreps F.kress S.kretzschmar P.krokovny W.krupa W.krzemien W.kucewicz m.kucharczyk V.kudryavtsev H.S.kuindersma G.J.kunde T.kvaratskheliya D.Lacarrere G.Lafferty A.Lai A.Lampis D.Lancierini J.J.Lane R.Lane G.Lanfranchi C.Langenbruch J.Langer O.Lantwin T.Latham F.Lazzari R.Le Gac S.H.Lee R.Lefèvre A.Leflat S.Legotin O.Leroy T.Lesiak B.Leverington H.Li L.Li P.Li Y.Li Y.Li Z.Li X.Liang T.Lin R.Lindner V.Lisovskyi R.Litvinov G.Liu H.Liu S.Liu X.Liu A.Loi J.Lomba Castro I.Longstaff J.H.Lopes G.Loustau G.H.Lovell Y.Lu D.Lucchesi S.Luchuk m.Lucio martinez V.Lukashenko Y.Luo A.Lupato E.Luppi O.Lupton A.Lusiani X.Lyu L.ma R.ma S.maccolini F.machefert F.maciuc V.macko P.mackowiak S.maddrell.mander O.madejczyk L.R.madhan.mohan O.maev A.maevskiy D.maisuzenko m.W.majewski J.J.malczewski S.malde B.malecki A.malinin T.maltsev H.malygina G.manca G.mancinelli R.manera Escalero D.manuzzi D.marangotto J.maratas J.F.marchand U.marconi S.mariani C.marin Benito m.marinangeli P.marino J.marks P.J.marshall G.martellotti L.martinazzoli m.martinelli D.martinez Santos F.martinez Vidal A.massafferri m.materok R.matev A.mathad Z.mathe V.matiunin C.matteuzzi k.R.mattioli A.mauri E.maurice J.mauricio m.mazurek m.mcCann L.mcconnell T.H.mcgrath A.mcNab R.mcNulty J.V.mead B.meadows C.meaux G.meier N.meinert D.melnychuk S.meloni m.merk A.merli L.meyer Garcia m.mikhasenko D.A.milanes E.millard m.milovanovic m.-N.minard L.minzoni S.E.mitchell B.mitreska D.S.mitzel A.mödden R.A.moh.mmed R.D.moise T.m.mbächer I.A.monroy S.monteil m.morandin G.morello m.J.morello J.moron A.B.morris A.G.morris R.mountain H.mu F.muhe.m m.mukherjee m.mulder D.müller k.müller C.H.murphy D.murray P.muzzetto P.Naik T.Nakada R.Nandakumar T.Nanut I.Nasteva m.Needham I.Neri I.Neri S.Neubert N.Neufeld R.Newcombe T.D.Nguyen C.Nguyen-mau E.m.Niel S.Nieswand N.Nikitin N.S.Nolte C.Nunez A.Oblakowska-mucha V.Obraztsov D.P.O’Hanlon R.Oldeman m.E.Olivares C.J.G.Onderwater A.Ossowska J.m.Otalora Goicochea T.Ovsiannikova P.Owen A.Oyanguren B.Pagare P.R.Pais T.Pajero A.Palano m.Palutan Y.Pan G.Panshin A.Papanestis m.Pappagallo L.L.Pappalardo C.Pappenheimer W.Parker C.Parkes C.J.Parkinson B.Passalacqua G.Passaleva A.Pastore m.Patel C.Patrignani C.J.Pawley A.Pearce A.Pellegrino m.Pepe Altarelli S.Perazzini D.Pereima P.Perret k.Petridis A.Petrolini A.Petrov S.Petrucci m.Petruzzo T.T.H.Pham A.Philippov L.Pica m.Piccini B.Pietrzyk G.Pietrzyk m.Pili D.Pinci F.Pisani A.Piucci Resmi P.k V.Placinta J.Plews m.Plo Casasus F.Polci m.Poli Lener m.Poliakova A.Poluektov N.Polukhina I.Polyakov E.Polycarpo G.J.Pomery S.Ponce D.Popov S.Popov S.Poslavskii k.Prasanth L.Promberger C.Prouve V.Pugatch H.Pullen G.Punzi W.Qian J.Qin R.Quagliani B.Quintana N.V.Raab R.I.Rabadan Trejo B.Rachwal J.H.Rademacker m.Rama m.Ramos Pernas m.S.Rangel F.Ratnikov G.Raven m.Reboud F.Redi F.Reiss C.Remon 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E.Smith m.Smith A.Snoch m.Soares L.Soares Lavra m.D.Sokoloff F.J.P.Soler A.Solovev I.Solovyev F.L.Souza De Almeida B.Souza De Paula B.Spaan E.Spadaro Norella P.Spradlin F.Stagni m.Stahl S.Stahl P.Stefko O.Steinkamp S.Stemmle O.Stenyakin H.Stevens S.Stone m.E.Stramaglia m.Straticiuc D.Strekalina S.Strokov F.Suljik J.Sun L.Sun Y.Sun P.Svihra P.N.Swallow k.Swientek A.Szabelski T.Szumlak m.Szymanski S.Taneja F.Teubert E.Thomas k.A.Thomson m.J.Tilley V.Tisserand S.T’Jampens m.Tobin S.Tolk L.Tomassetti D.Torres machado D.Y.Tou m.Traill m.T.Tran E.Trifonova C.Trippl G.Tuci A.Tully N.Tuning A.Ukleja D.J.Unverzagt E.Ursov A.Usachov A.Ustyuzhanin U.Uwer A.Vagner V.Vagnoni A.Valassi G.Valenti N.Valls Canudas m.van Beuzekom m.Van Dijk E.van Herwijnen C.B.Van Hulse m.van Veghel R.Vazquez Gomez P.Vazquez Regueiro C.Vázquez Sierra S.Vecchi J.J.Velthuis m.Veltri A.Venkateswaran m.Veronesi m.Vesterinen D.Vieira m.Vieites Diaz H.Viemann X.Vilasis-Cardona E.Vilella Figueras P.Vincent G.Vitali A.Vollhardt D.Vom Bruch A.Vorobyev V.Vorobyev N.Voropaev R.Waldi J.Walsh C.Wang J.Wang J.Wang J.Wang J.Wang m.Wang R.Wang Y.Wang Z.Wang H.m.Wark N.k.Watson S.G.Weber D.Websdale C.Weisser B.D.C.Westhenry D.J.White m.Whitehead D.Wiedner G.Wilkinson m.Wilkinson I.Williams m.Williams m.R.J.Williams F.F.Wilson W.Wislicki m.Witek L.Witola G.Wormser S.A.Wotton H.Wu k.Wyllie Z.Xiang D.Xiao Y.Xie A.Xu J.Xu L.Xu m.Xu Q.Xu Z.Xu Z.Xu D.Yang S.Yang Y.Yang Z.Yang Z.Yang Y.Yao L.E.Yeomans H.Yin J.Yu X.Yuan O.Yushchenko E.Zaffaroni k.A.Zarebsk. m.Zavertyaev m.Zdybal O.Zenaiev m.Zeng D.Zhang L.Zhang S.Zhang Y.Zhang Y.Zhang A.Zhelezov Y.Zheng X.Zhou Y.Zhou X.Zhu V.Zhukov J.B.Zonneveld S.Zucchelli D.Zuliani G.Zunica 《Science Bulletin》 SCIE EI CSCD 2021年第13期1278-1287,M0003,共11页
First evidence of a structure in the J/ψΛinvariant mass distribution is obtained from an amplitude analysis of■b^(-)J/ψΛK^(-)decays.The observed structure is consistent with being due to a charmonium pentaquark w... First evidence of a structure in the J/ψΛinvariant mass distribution is obtained from an amplitude analysis of■b^(-)J/ψΛK^(-)decays.The observed structure is consistent with being due to a charmonium pentaquark with strangeness with a significance of 3.1r including systematic uncertainties and lookelsewhere effect.Its mass and width are determined to be 4458:8±2:9t4:7-1:1 MeV and 17:3±6:5t8:0-5:7 MeV,respectively,where the quoted uncertainties are statistical and systematic.The structure is also consistent with being due to two resonances.In addition,the narrow excited■^(-)states,N■(1690)and■(1820),are seen for the first time in a■b^(-)decay,and their masses and widths are measured with improved precision.The analysis is performed using pp collision data corresponding to a total integrated luminosity of 9 fb^(-1),collected with the LHCb experiment at centre-of-mass energies of 7,8 and 13 TeV. 展开更多
关键词 QCD EXOTICS PENTAQUARK Spectroscopy Quarkonium Particle and resonance production
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Search for the doubly charmed baryon ■ 被引量：2
2
作者 R.Aaij C.Abellán Beteta +907 位作者 T.Ackernley B.Adeva m.Adinolfi H.Afsharnia C.A.Aidala S.Aiola Z.Ajaltouni S.Akar P.Albicocco J.Albrecht F.Alessio m.Alexander A.Alfonso Albero G.Alkhazov P.Alvarez Cartelle A.A.Alves Jr S.Amato Y.Amhis L.An L.Anderlini G.Andreassi m.Andreotti F.Archilli J.Arnau Romeu A.Artamonov m.Artuso k.Arzymatov E.Aslanides m.Atzeni B.Audurier S.Bachmann J.J.Back S.Baker V.Balagura W.Baldini A.Baranov R.J.Barlow S.Barsuk W.Barter m.Bartolini F.Baryshnikov G.Bassi V.Batozskaya B.Batsukh A.Battig V.Battista A.Bay m.Becker F.Bedeschi I.Bediaga A.Beiter L.J.Bel V.Belavin S.Belin N.Beliy V.Bellee k.Belous I.Belyaev G.Bencivenni E.Ben-Haim S.Benson S.Beranek A.Berezhnoy R.Bernet D.Berninghoff H.C.Bernstein E.Bertholet A.Bertolin C.Betancourt F.Betti m.O.Bettler Ia.Bezshyiko S.Bhasin J.Bhom m.S.Bieker S.Bifani P.Billoir A.Birnkraut A.Bizzeti m.Bjφrn m.P.Blago T.Blake F.Blanc S.Blusk D.Bobulska V.Bocci O.Boente Garcia T.Boettcher A.Boldyrev A.Bondar N.Bondar S.Borghi m.Borisyak m.Borsato J.T.Borsuk T.J.V.Bowcock C.Bozzi S.Braun A.Brea Rodriguez m.Brodski J.Brodzicka A.Brossa Gonzalo D.Brundu E.Buchanan A.Buonaura C.Burr A.Bursche J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Calabrese S.Cali R.Calladine m.Calvi m.Calvo Gomez A.Camboni P.Campana D.H.Campora Perez L.Capriotti A.Carbone G.Carboni R.Cardinale A.Cardini P.Carniti k.Carvalho Ak.ba A.Casais Vidal G.Casse m.Cattaneo G.Cavallero R.Cenci J.Cerasoli m.G.Chapman m.Charles Ph.Charpentier G.Chatzikonstantinidis m.Chefdeville V.Chekalina C.Chen S.Chen A.Chernov S.-G.Chitic V.Chobanova m.Chrzaszcz A.Chubykin P.Ciambrone m.F.Cicala X.Cid Vidal G.Ciezarek F.Cindolo P.E.L.Clarke m.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan E.Cogneras L.Cojocariu P.Collins T.Colombo A.Comerma-montells A.Contu N.Cooke G.Coombs S.Coquereau G.Corti C.m.Costa Sobral B.Couturier D.C.Craik J.Crkovska A.Crocombe m.Cruz Torres R.Currie C.L.Da Silva E.Dall'Occo J.Dalseno C.D'Ambrosio A.Danilina P.d'Argent A.Davis O.De Aguiar Francisco k.De Bruyn S.De Capua m.De Cian J.m.De.miranda L.De Paula m.De Serio P.De Simone J.A.de Vries C.T.Dean W.Dean D.Decamp L.Del Buono B.Delaney H.-P.Dembinski m.Demmer A.Dendek V.Denysenko D.Derkach O.Deschamps F.Desse F.Dettori B.Dey A.Di Canto P.Di Nezza S.Didenko H.Dijkstra F.Dordei m.Dorigo A.C.dos Reis L.Douglas A.Dovbnya k.Dreimanis m.W.Dudek L.Dufour G.Dujany P.Durante J.m.Durh.m D.Dutta R.Dzhelyadin m.Dziewiecki A.Dziurda A.Dzyuba S.Easo U.Egede V.Egorychev S.Eidelman S.Eisenhardt R.Ekelhof S.Ek-In L.Eklund S.Ely A.Ene S.Escher S.Esen T.Evans A.Falabella J.Fan N.Farley S.Farry D.Fazzini m.Feo P.Fernandez Declara A.Fernandez Prieto F.Ferrari L.Ferreira Lopes F.Ferreira Rodrigues S.Ferreres Sole m.Ferrillo m.Ferro-Luzzi S.Filippov R.A.Fini m.Fiorini m.Firlej k.m.Fischer C.Fitzpatrick T.Fiutowski F.Fleuret m.Fontana F.Fontanelli R.Forty V.Franco Lima m.Franco Sevilla m.Frank C.Frei D.A.Friday J.Fu m.Fuehring W.Funk E.Gabriel A.Gallas Torreira D.Galli S.Gallorini S.Gambetta Y.Gan m.Gandelman P.Gandini Y.Gao L.m.Garcia.martin J.Garc'ia Pardi nas B.Garcia Plana F.A.Garcia Rosales J.Garra Tico L.Garrido D.Gascon C.Gaspar D.Gerick E.Gersabeck m.Gersabeck T.Gershon D.Gerstel Ph.Ghez V.Gibson A.Gioventù O.G.Girard P.Gironella Gironell L.Giubega C.Giugliano k.Gizdov V.V.Gligorov C.Gobel D.Golubkov A.Golutvin A.Gomes P.Gorbounov I.V.Gorelov C.Gotti E.Govorkova J.P.Grabowski R.Graciani Diaz T.Grammatico L.A.Granado Cardoso E.Graugés E.Graverini G.Graziani A.Grecu R.Greim P.Griffith L.Grillo L.Gruber B.R.Gruberg Cazon C.Gu E.Gushchin A.Guth Yu.Guz T.Gys T.Hadavizadeh G.Haefeli C.Haen S.C.Haines P.m.H.milton Q.Han X.Han T.H.Hancock S.Hansmann-menzemer N.Harnew T.Harrison R.Hart C.Hasse m.Hatch J.He m.Hecker k.Heijhoff k.Heinick. A.Heister A.m.Hennequin k.Hennessy L.Henry J.Heuel A.Hicheur R.Hidalgo Charman D.Hill m.Hilton P.H.Hopchev J.Hu W.Hu W.Huang Z.C.Huard W.Hulsbergen T.Humair R.J.Hunter m.Hushchyn D.Hutchcroft D.Hynds P.Ibis m.Idzik P.Ilten A.Inglessi A.Inyakin k.Ivshin R.Jacobsson S.Jakobsen J.Jalocha E.Jans B.k.Jashal A.Jawahery V.Jevtic F.Jiang m.John D.Johnson C.R.Jones B.Jost N.Jurik S.kandybei m.karacson J.m.kariuki N.kazeev m.kecke F.keizer m.kelsey m.kenzie T.ketel B.khanji A.kharisova k.E.k.m T.kirn V.S.kirsebom S.klaver k.k.imaszewsk. S.koliiev A.kondybayeva A.konoplyannikov P.kopciewicz R.kopecna P.koppenburg I.kostiuk O.kot S.kotriakhova L.kravchuk R.D.krawczyk m.kreps F.kress S.kretzschmar P.krokovny W.krupa W.krzemien W.kucewicz m.kucharczyk V.kudryavtsev H.S.kuindersma G.J.kunde A.k.k.onen T.kvaratskheliya D.Lacarrere G.Lafferty A.Lai D.Lancierini J.J.Lane G.Lanfranchi C.Langenbruch T.Latham F.Lazzari C.Lazzeroni R.Le Gac R.Lefèvre A.Leflat F.Lemaitre O.Leroy T.Lesiak B.Leverington H.Li P.-R.Li X.Li Y.Li Z.Li X.Liang R.Lindner F.Lionetto V.Lisovskyi G.Liu X.Liu D.Loh A.Loi J.Lomba Castro I.Longstaff J.H.Lopes G.Loustau G.H.Lovell Y.Lu D.Lucchesi m.Lucio martinez Y.Luo A.Lupato E.Luppi O.Lupton A.Lusiani X.Lyu S.maccolini F.machefert F.maciuc V.macko P.mackowiak S.maddrell.mander L.R.madhan.mohan O.maev 37, A.maevskiy k.maguire D.maisuzenko m.W.majewski S.malde B.malecki A.malinin T.maltsev H.malygina G.manca G.mancinelli R.manera Escalero D.manuzzi D.marangotto J.maratas J.F.marchand U.marconi S.mariani C.marin Benito m.marinangeli P.marino J.marks P.J.marshall G.martellotti L.martinazzoli m.martinelli D.martinez Santos F.martinez Vidal A.massafferri m.materok R.matev A.mathad Z.mathe V.matiunin C.matteuzzi k.R.mattioli A.mauri E.maurice m.mcCann L.mcconnell A.mcNab R.mcNulty J.V.mead B.meadows C.meaux N.meinert D.melnychuk S.meloni m.merk A.merli D.A.milanes E.millard m.-N.minard O.mineev L.minzoni S.E.mitchell B.mitreska D.S.mitzel A.modden A.mogini R.D.moise T.m.mbacher I.A.monroy S.monteil m.morandin G.morello m.J.morello J.moron A.B.morris A.G.morris R.mountain H.mu F.muhe.m m.mukherjee m.mulder D.müller J.müller k.müller V.müller C.H.murphy D.murray P.muzzettov P.Naik T.Nakada R.Nandakumar A.Nandi T.Nanut I.Nasteva m.Needham N.Neri S.Neubert N.Neufeld R.Newcombe T.D.Nguyen C.Nguyen-mau E.m.Niel S.Nieswand N.Nikitin N.S.Nolte A.Oblakowska-mucha V.Obraztsov S.Ogilvy D.P.O'Hanlon R.Oldeman C.J.G.Onderwater J.D.Osborn A.Ossowska J.m.Otalora Goicochea T.Ovsiannikova P.Owen A.Oyanguren P.R.Pais T.Pajero A.Palano m.Palutan G.Panshin A.Papanestis m.Pappagallo L.L.Pappalardo W.Parker C.Parkes G.Passaleva A.Pastore m.Patel C.Patrignani A.Pearce A.Pellegrino G.Penso m.Pepe Altarelli S.Perazzini D.Pereima P.Perret L.Pescatore k.Petridis A.Petrolini A.Petrov S.Petrucci m.Petruzzo B.Pietrzyk G.Pietrzyk m.Pikies m.Pili D.Pinci J.Pinzino F.Pisani A.Piucci V.Placinta S.Playfer J.Plews m.Plo Casasus F.Polci m.Poli Lener m.Poliakova A.Poluektov N.Polukhina I.Polyakov E.Polycarpo G.J.Pomery S.Ponce A.Popov D.Popov S.Poslavskii k.Prasanth L.Promberger C.Prouve V.Pugatch A.Puig Navarro H.Pullen G.Punzi W.Qian J.Qin R.Quagliani B.Quintana N.V.Raab B.Rachwal J.H.Rademacker m.Rama m.Ramos Pernas m.S.Rangel F.Ratnikov G.Raven m.Ravonel Salzgeber m.Reboud F.Redi S.Reichert F.Reiss C.Remon Alepuz Z.Ren V.Renaudin S.Ricciardi S.Richards k.Rinnert P.Robbe A.Robert A.B.Rodrigues E.Rodrigues J.A.Rodriguez Lopez m.Roehrken S.Roiser A.Rollings V.Romanovskiy m.Romero Lamas A.Romero Vidal J.D.Roth m.Rotondo m.S.Rudolph T.Ruf J.Ruiz Vidal J.Ryzka J.J.Saborido Silva N.Sagidova B.Saitta C.Sanchez Gras C.Sanchez mayordomo B.Sanmartin Sedes R.Santacesaria C.Santamarina Rios m.Santimaria E.Santovetti G.Sarpis A.Sarti C.Satriano A.Satta m.Saur D.Savrina L.G.Scantlebury Smead S.Schael m.Schellenberg m.Schiller H.Schindler m.Schmelling T.Schmelzer B.Schmidt O.Schneider A.Schopper H.F.Schreiner m.Schubiger S.Schulte m.H.Schune R.Schwemmer B.Sciascia A.Sciubba S.Sellam A.Semennikov A.Sergi N.Serra J.Serrano L.Sestini A.Seuthe P.Seyfert D.m.Shangase m.Shapkin T.Shears L.Shekhtman V.Shevchenko E.Shmanin J.D.Shupperd B.G.Siddi R.Silva Coutinho L.Silva de Oliveira G.Simi S.Simone I.Skiba N.Skidmore T.Skwarnicki m.W.Slater J.G.Smeaton A.Smetkina E.Smith I.T.Smith m.Smith A.Snoch m.Soares L.Soares Lavra m.D.Sokoloff F.J.P.Soler B.Souza De Paula B.Spaan E.Spadaro Norella P.Spradlin F.Stagni m.Stahl S.Stahl P.Stefko S.Stefkova O.Steinkamp S.Stemmle O.Stenyakin m.Stepanova H.Stevens A.Stocchi S.Stone S.Stracka m.E.Stramaglia m.Straticiuc U.Straumann S.Strokov J.Sun L.Sun Y.Sun P.Svihra k.Swientek A.Szabelski T.Szumlak m.Szymanski S.Taneja Z.Tang T.Tekampe G.Tellarini F.Teubert E.Thomas k.A.Thomson m.J.Tilley V.Tisserand S.T'Jampens m.Tobin S.Tolk L.Tomassetti D.Tonelli D.Y.Tou E.Tournefier m.Traill m.T.Tran A.Trisovic A.Tsaregorodtsev G.Tuci A.Tully N.Tuning A.Ukleja A.Usachov A.Ustyuzhanin U.Uwer A.Vagner V.Vagnoni A.Valassi G.Valenti m.van Beuzekom H.Van Hecke E.van Herwijnen C.B.Van Hulse J.van Tilburg m.van Veghel R.Vazquez Gomez P.Vazquez Regueiro C.Vazquez Sierra S.Vecchi J.J.Velthuis m.Veltri A.Venkateswaran m.Vernet m.Veronesi m.Vesterinen J.V.Viana Barbosa D.Vieira m.Vieites Diaz H.Viemann X.Vilasis-Cardona A.Vitkovskiy V.Volkov A.Vollhardt D.Vom Bruch A.Vorobyev V.Vorobyev N.Voropaev R.Waldi J.Walsh J.Wang J.Wang m.Wang Y.Wang Z.Wang D.R.Ward H.m.Wark N.k.Watson D.Websdale A.Weiden C.Weisser B.D.C.Westhenry D.J.White m.Whitehead D.Wiedner G.Wilkinson m.Wilkinson I.Williams m.Williams m.R.J.Williams T.Williams F.F.Wilson m.Winn W.Wislicki m.Witek G.Wormser S.A.Wotton H.Wu k.Wyllie Z.Xiang D.Xiao Y.Xie H.Xing A.Xu L.Xu m.Xu Q.Xu Z.Xu Z.Xu Z.Yang Z.Yang Y.Yao L.E.Yeomans H.Yin J.Yu X.Yuan O.Yushchenko k.A.Zarebsk. m.Zavertyaev m.Zdybal m.Zeng D.Zhang L.Zhang S.Zhang W.C.Zhang Y.Zhang A.Zhelezov Y.Zheng X.Zhou Y.Zhou X.Zhu V.Zhukov J.B.Zonneveld S.Zucchelli 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS CSCD 2020年第2期8-22,共15页
A search for the doubly charmed baryon ■^+cc is performed through its decay to theΛ^+c K^-π^+ final state,using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7,8 and 13... A search for the doubly charmed baryon ■^+cc is performed through its decay to theΛ^+c K^-π^+ final state,using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7,8 and 13 TeV.The data correspond to a total integrated luminosity of 9 fb^-1.No significant signal is observed in the mass range from 3.4 to 3.8 GeV/c^2.Upper limits are set at 95%credibility level on the ratio of the ■^+cc production cross-section times the branching fraction to that ofΛ^+c and ■^++cc baryons.The limits are determined as functions of the ■^+cc mass for different lifetime hypotheses,in the rapidity range from 2.0 to 4.5 and the transverse momentum range from 4 to 15 GeV/c. 展开更多
关键词 charmed baryons limits on production of particles charmed quarks experimental tests
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Measurement of Ξcc++ production in pp collisions at s1/2=13 TeV 被引量：1
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作者 R.Aaij C.Abellán Beteta +903 位作者 T.Ackernley B.Adeva m.Adinolfi H.Afsharnia C.A.Aidala S.Aiola Z.Ajaltouni S.Akar P.Albicocco J.Albrecht F.Alessio m.Alexander A.Alfonso Albero G.Alkhazov P.Alvarez Cartelle A.A.Alves Jr S.Amato Y.Amhis L.An L.Anderlini G.Andreassi m.Andreotti F.Archilli A.Artamonov m.Artuso k.Arzymatov E.Aslanides m.Atzeni B.Audurier S.Bachmann J.J.Back S.Baker V.Balagura W.Baldini A.Baranov R.J.Barlow S.Barsuk W.Barter m.Bartolini F.Baryshnikov J.m.Basels G.Bassi V.Batozskaya B.Batsukh A.Battig A.Bay m.Becker F.Bedeschi I.Bediaga A.Beiter L.J.Bel V.Belavin S.Belin V.Bellee k.Belous I.Belyaev G.Bencivenni E.Ben-Haim S.Benson S.Beranek A.Berezhnoy R.Bernet D.Berninghoff H.C.Bernstein C.Bertella E.Bertholet A.Bertolin C.Betancourt F.Betti m.O.Bettler Ia.Bezshyiko S.Bhasin J.Bhom m.S.Bieker S.Bifani P.Billoir A.Bizzeti m.Bjørn m.P.Blago T.Blake F.Blanc S.Blusk D.Bobulska V.Bocci O.Boente Garcia T.Boettcher A.Boldyrev A.Bondar N.Bondar S.Borghi m.Borisyak m.Borsato J.T.Borsuk T.J.V.Bowcock C.Bozzi m.J.Bradley S.Braun A.Brea Rodriguez m.Brodski J.Brodzicka A.Brossa Gonzalo D.Brundu E.Buchanan A.Buonaura C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Calabrese L.Calero Diaz S.Cali R.Calladine m.Calvi m.Calvo Gomez P.Camargo magalhaes A.Camboni P.Campana D.H.Campora Perez A.F.Campoverde Quezada L.Capriotti A.Carbone G.Carboni R.Cardinale A.Cardini I.Carli P.Carniti k.Carvalho Ak.ba A.Casais Vidal G.Casse m.Cattaneo G.Cavallero S.Celani R.Cenci J.Cerasoli m.G.Chapman m.Charles Ph.Charpentier G.Chatzikonstantinidis m.Chefdeville V.Chekalina C.Chen S.Chen A.Chernov S.-G.Chitic V.Chobanova S.Cholak m.Chrzaszcz A.Chubykin P.Ciambrone m.F.Cicala X.Cid Vidal G.Ciezarek F.Cindolo P.E.L.Clarke m.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan E.Cogneras L.Cojocariu P.Collins T.Colombo A.Comerma-montells A.Contu N.Cooke G.Coombs S.Coquereau G.Corti C.m.Costa Sobral B.Couturier D.C.Craik J.Crkovska A.Crocombe m.Cruz Torres R.Currie C.L.Da Silva E.Dall'Occo J.Dalseno C.D'Ambrosio A.Danilina P.d'Argent A.Davis O.De Aguiar Francisco k.De Bruyn S.De Capua m.De Cian J.m.De.miranda L.De Paula m.De Serio P.De Simone J.A.de Vries C.T.Dean W.Dean D.Decamp L.Del Buono B.Delaney H.-P.Dembinski A.Dendek V.Denysenko D.Derkach O.Deschamps F.Desse F.Dettori B.Dey A.Di Canto P.Di Nezza S.Didenko H.Dijkstra V.Dobishuk F.Dordei m.Dorigo A.C.dos Reis L.Douglas A.Dovbnya k.Dreimanis m.W.Dudek L.Dufour G.Dujany P.Durante J.m.Durh.m D.Dutta m.Dziewiecki A.Dziurda A.Dzyuba S.Easo U.Egede V.Egorychev S.Eidelman S.Eisenhardt R.Ekelhof S.Ek-In L.Eklund S.Ely A.Ene E.Epple S.Escher S.Esen T.Evans A.Falabella J.Fan N.Farley S.Farry D.Fazzini P.Fedin m.Féo P.Fernandez Declara A.Fernandez Prieto F.Ferrari L.Ferreira Lopes F.Ferreira Rodrigues S.Ferreres Sole m.Ferrillo m.Ferro-Luzzi S.Filippov R.A.Fini m.Fiorini m.Firlej k.m.Fischer C.Fitzpatrick T.Fiutowski F.Fleuret m.Fontana F.Fontanelli R.Forty V.Franco Lima m.Franco Sevilla m.Frank C.Frei D.A.Friday J.Fu m.Fuehring W.Funk E.Gabriel A.Gallas Torreira D.Galli S.Gallorini S.Gambetta Y.Gan m.Gandelman P.Gandini Y.Gao L.m.Garcia.martin J.García Pardiñas B.Garcia Plana F.A.Garcia Rosales L.Garrido44 D.Gascon C.Gaspar D.Gerick E.Gersabeck m.Gersabeck T.Gershon D.Gerstel Ph.Ghez V.Gibson A.Gioventù O.G.Girard P.Gironell Gironell L.Giubega C.Giugliano k.Gizdov V.V.Gligorov C.Göbel D.Golubkov A.Golutvin A.Gomes P.Gorbounov I.V.Gorelov C.Gotti E.Govorkova J.P.Grabowski R.Graciani Diaz T.Grammatico L.A.Granado Cardoso E.Graugés E.Graverini G.Graziani A.Grecu R.Greim P.Griffith L.Grillo L.Gruber B.R.Gruberg Cazon C.Gu E.Gushchin A.Guth Yu.Guz T.Gys P.A.Günther T.Hadavizadeh G.Haefeli C.Haen S.C.Haines P.m.H.milton Q.Han X.Han T.H.Hancock S.Hansmann-menzemer N.Harnew T.Harrison R.Hart C.Hasse m.Hatch J.He m.Hecker k.Heijhoff k.Heinick. A.m.Hennequin k.Hennessy L.Henry J.Heuel A.Hicheur D.Hill m.Hilton P.H.Hopchev J.Hu W.Hu W.Huang W.Hulsbergen T.Humair R.J.Hunter m.Hushchyn D.Hutchcroft D.Hynds P.Ibis m.Idzik P.Ilten A.Inglessi k.Ivshin R.Jacobsson S.Jakobsen E.Jans B.k.Jashal A.Jawahery V.Jevtic F.Jiang m.John D.Johnson C.R.Jones B.Jost N.Jurik S.kandybei m.karacson J.m.kariuki N.kazeev m.kecke F.keizer m.kelsey m.kenzie T.ketel B.khanji A.kharisova k.E.k.m T.kirn V.S.kirsebom S.klaver k.k.imaszewsk. S.koliiev A.kondybayeva A.konoplyannikov P.kopciewicz R.kopecna P.koppenburg I.kostiuk O.kot S.kotriakhova L.kravchuk R.D.krawczyk m.kreps F.kress S.kretzschmar P.krokovny W.krupa W.krzemien W.kucewicz m.kucharczyk V.kudryavtsev H.S.kuindersma G.J.kunde T.kvaratskheliya D.Lacarrere G.Lafferty A.Lai D.Lancierini J.J.Lane G.Lanfranchi C.Langenbruch O.Lantwin T.Latham F.Lazzari C.Lazzeroni R.Le Gac R.Lefèvre A.Leflat O.Leroy T.Lesiak B.Leverington H.Li L.Li X.Li Y.Li Z.Li X.Liang R.Lindner V.Lisovskyi G.Liu X.Liu D.Loh A.Loi J.Lomba Castro I.Longstaff J.H.Lopes G.Loustau G.H.Lovell Y.Lu D.Lucchesi m.Lucio martinez Y.Luo A.Lupato E.Luppi O.Lupton A.Lusiani X.Lyu S.maccolini F.machefert F.maciuc V.macko P.mackowiak S.maddrell.mander L.R.madhan.mohan O.maev A.maevskiy D.maisuzenko m.W.majewski S.malde B.malecki A.malinin T.maltsev H.malygina G.manca G.mancinelli R.manera Escalero D.manuzzi D.marangotto J.maratas J.F.marchand U.marconi S.mariani C.marin Benito m.marinangeli P.marino J.marks P.J.marshall G.martellotti L.martinazzoli m.martinelli D.martinez Santos F.martinez Vidal A.massafferri m.materok R.matev A.mathad Z.mathe V.matiunin C.matteuzzi k.R.mattioli A.mauri E.maurice m.mcCann L.mcconnell A.mcNab R.mcNulty J.V.mead B.meadows C.meaux G.meier N.meinert D.melnychuk S.meloni m.merk A.merli m.mikhasenko D.A.milanes E.millard m.-N.minard O.mineev L.minzoni S.E.mitchell B.mitreska D.S.mitzel A.mödden A.mogini R.D.moise T.m.mbächer I.A.monroy S.monteil m.morandin G.morello m.J.morello J.moron A.B.morris A.G.morris R.mountain H.mu F.muhe.m m.mukherjee m.mulder D.müller k.müller C.H.murphy D.murray P.muzzetto P.Naik T.Nakada R.Nandakumar T.Nanut I.Nasteva m.Needham N.Neri S.Neubert N.Neufeld R.Newcombe T.D.Nguyen C.Nguyen-mau E.m.Niel S.Nieswand N.Nikitin N.S.Nolte C.Nunez A.Oblakowska-mucha V.Obraztsov S.Ogilvy D.P.O'Hanlon R.Oldeman C.J.G.Onderwater J.D.Osborn A.Ossowska J.m.Otalora Goicochea T.Ovsiannikova P.Owen49 A.Oyanguren P.R.Pais48 T.Pajero A.Palano m.Palutan 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S.Strokov J.Sun L.Sun Y.Sun P.Svihra k.Swientek A.Szabelski T.Szumlak m.Szymanski S.Taneja Z.Tang T.Tekampe F.Teubert E.Thomas k.A.Thomson m.J.Tilley V.Tisserand S.T'Jampens m.Tobin S.Tolk L.Tomassetti D.Tonelli D.Torres machado D.Y.Tou E.Tournefier m.Traill m.T.Tran E.Trifonova C.Trippl A.Trisovic A.Tsaregorodtsev G.Tuci A.Tully N.Tuning A.Ukleja A.Usachov A.Ustyuzhanin U.Uwer A.Vagner V.Vagnoni A.Valassi G.Valenti m.van Beuzekom H.Van Hecke E.van Herwijnen C.B.Van Hulse m.van Veghel R.Vazquez Gomez P.Vazquez Regueiro C.Vázquez Sierra S.Vecchi J.J.Velthuis m.Veltri A.Venkateswaran m.Vernet m.Veronesi m.Vesterinen J.V.Viana Barbosa D.Vieira m.Vieites Diaz H.Viemann X.Vilasis-Cardona A.Vitkovskiy V.Volkov A.Vollhardt D.Vom Bruch A.Vorobyev V.Vorobyev N.Voropaev R.Waldi J.Walsh J.Wang J.Wang J.Wang m.Wang Y.Wang Z.Wang D.R.Ward H.m.Wark N.k.Watson D.Websdale A.Weiden C.Weisser B.D.C.Westhenry D.J.White m.Whitehead D.Wiedner G.Wilkinson m.Wilkinson I.Williams m.Williams m.R.J.Williams T.Williams F.F.Wilson W.Wislicki m.Witek L.Witola G.Wormser S.A.Wotton H.Wu k.Wyllie Z.Xiang D.Xiao Y.Xie H.Xing A.Xu L.Xu m.Xu Q.Xu Z.Xu Z.Yang Z.Yang Y.Yao L.E.Yeomans H.Yin J.Yu X.Yuan O.Yushchenko k.A.Zarebsk. m.Zavertyaev m.Zdybal m.Zeng D.Zhang L.Zhang S.Zhang W.C.Zhang Y.Zhang A.Zhelezov Y.Zheng X.Zhou Y.Zhou X.Zhu V.Zhukov J.B.Zonneveld S.Zucchelli 《Chinese Physics C》 SCIE CAS CSCD 2020年第2期13-23,共11页
The production of ■baryons in proton-proton collisions at a centre-of-mass energy of √s = 13 TeV is measured in the transverse-momentum range 4<pT<15GeV/c and the rapidity range2.0<y<4.5.The data used in... The production of ■baryons in proton-proton collisions at a centre-of-mass energy of √s = 13 TeV is measured in the transverse-momentum range 4<pT<15GeV/c and the rapidity range2.0<y<4.5.The data used in this measurement correspond to an integrated luminosity of 1.7fb^-1,recorded by the LHCb experiment during 2016.The ratio of the ■ production cross-section times the branching fraction of the■→∧^+cK^-π^+ π^+decay relative to the prompt ∧^+c production cross-section is found to be(2.22±0.27±0.29)×10^-4,assuming the central value of the measured lifetime,where the first uncertainty is statistical and the second systematic. 展开更多
关键词 doubly charmed baryons hadron production QCD
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Search for the doubly heavy baryon Ξ_(bc)^(+)→ decaying to J/ψΞ_(c)^(+)
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作者 R.Aaij A.S.W.Abdelmotteleb +1013 位作者 C.Abellan Beteta F.Abudinén T.Ackernley B.Adeva m.Adinolfi H.Afsharnia C.Agapopoulou C.A.Aidala S.Aiola Z.Ajaltouni S.Akar k.Ak.ba J.Albrecht F.Alessio m.Alexander A.Alfonso Albero Z.Aliouche P.Alvarez Cartelle S.Amato J.L.Amey Y.Amhis L.An L.Anderlini m.Andersson A.Andreianov m.Andreotti D.Andreou D.Ao F.Archilli A.Artamonov m.Artuso E.Aslanides m.Atzeni B.Audurier S.Bachmann m.Bachmayer J.J.Back A.Bailly-reyre P.Baladron Rodriguez V.Balagura W.Baldini J.Baptista de Souza Leite m.Barbetti R.J.Barlow S.Barsuk W.Barter m.Bartolini F.Baryshnikov J.m.Basels G.Bassi B.Batsukh A.Battig A.Bay A.Beck m.Becker F.Bedeschi I.B.Bediaga A.Beiter V.Belavin S.Belin V.Bellee k.Belous I.Belov I.Belyaev G.Bencivenni E.Ben-Haim A.Berezhnoy R.Bernet D.Berninghoff H.C.Bernstein C.Bertella A.Bertolin C.Betancourt F.Betti Ia.Bezshyiko S.Bhasin J.Bhom L.Bian m.S.Bieker N.V.Biesuz S.Bifani P.Billoir A.Biolchini m.Birch F.C.R.Bishop A.Bitadze A.Bizzeti m.P.Blago T.Blake F.Blanc S.Blusk D.Bobulska J.A.Boelhauve O.Boente Garcia T.Boettcher A.Boldyrev N.Bondar S.Borghi m.Borsato J.T.Borsuk S.A.Bouchiba T.J.V.Bowcock A.Boyer C.Bozzi m.J.Bradley S.Braun A.Brea Rodriguez J.Brodzicka A.Brossa Gonzalo D.Brundu A.Buonaura L.Buonincontri A.T.Burke C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Calabrese L.Calefice S.Cali R.Calladine m.Calvi m.Calvo Gomez P.Camargo magalhaes P.Campana D.H.Campora Perez A.F.Campoverde Quezada S.Capelli L.Capriotti A.Carbone G.Carboni R.Cardinale A.Cardini I.Carli P.Carniti L.Carus A.Casais Vidal R.Caspary G.Casse m.Cattaneo G.Cavallero V.Cavallini S.Celani J.Cerasoli D.Cervenkov A.J.Chadwick m.G.Chapman m.Charles Ph.Charpentier C.A.Chavez Barajas m.Chefdeville C.Chen S.Chen A.Chernov S.Chernyshenko V.Chobanova S.Cholak m.Chrzaszcz A.Chubykin V.Chulikov P.Ciambrone m.F.Cicala X.Cid Vidal G.Ciezarek G.Ciullo P.E.L.Clarke m.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan E.Cogneras L.Cojocariu P.Collins T.Colombo L.Congedo A.Contu N.Cooke G.Coombs I.Corredoira G.Corti B.Couturier D.C.Craik J.Crkovská m.Cruz Torres R.Currie C.L.Da Silva S.Dadabaev L.Dai E.Dall'Occo J.Dalseno C.D'Ambrosio A.Danilina P.d'Argent J.E.Davies A.Davis O.De Aguiar Francisco J.de Boer k.De Bruyn S.De Capua m.De Cian U.De Freitas Carneiro Da Graca E.De Lucia J.m.De.miranda L.De Paula m.De Serio D.De Simone P.De Simone F.De Vellis J.A.de Vries C.T.Dean F.Debernardis D.Decamp V.Dedu L.Del Buono B.Delaney H.-P.Dembinski V.Denysenko O.Deschamps F.Dettori B.Dey A.Di Cicco P.Di Nezza S.Didenko L.Dieste maronas S.Ding V.Dobishuk A.Dolmatov C.Dong A.m.Donohoe F.Dordei A.C.dos Reis L.Douglas A.G.Downes m.W.Dudek L.Dufour V.Duk P.Durante J.m.Durh.m D.Dutta A.Dziurda A.Dzyuba S.Easo U.Egede V.Egorychev S.Eidelman S.Eisenhardt S.Ek-In L.Eklund S.Ely A.Ene E.Epple S.Escher J.Eschle S.Esen T.Evans L.N.Falcao Y.Fan B.Fang S.Farry D.Fazzini m.Feo A.D.Fernez F.Ferrari L.Ferreira Lopes F.Ferreira Rodrigues S.Ferreres Sole m.Ferrillo m.Ferro-Luzzi S.Filippov R.A.Fini m.Fiorini m.Firlej k.m.Fischer D.S.Fitzgerald C.Fitzpatrick T.Fiutowski F.Fleuret m.Fontana F.Fontanelli R.Forty D.Foulds-Holt V.Franco Lima m.Franco Sevilla m.Frank E.Franzoso G.Frau C.Frei D.A.Friday J.Fu Q.Fuehring E.Gabriel G.Galati A.Gallas Torreira D.Galli S.Gambetta Y.Gan m.Gandelman P.Gandini Y.Gao m.Garau L.m.Garcia.martin P.Garcia moreno J.García Pardiäas B.Garcia Plana F.A.Garcia Rosales L.Garrido C.Gaspar R.E.Geertsema D.Gerick L.L.Gerken E.Gersabeck m.Gersabeck T.Gershon L.Giambastiani V.Gibson H.k.Giemza A.L.Gilman m.Giovannetti A.Gioventù P.Gironella Gironell C.Giugliano m.A.Giza k.Gizdov E.L.Gkougkousis V.V.Gligorov C.Gäbel E.Golobardes D.Golubkov A.Golutvin A.Gomes S.Gomez Fernandez F.Goncalves Abrantes m.Goncerz G.Gong I.V.Gorelov C.Gotti J.P.Grabowski T.Grammatico L.A.Granado Cardoso E.Graugés E.Graverini G.Graziani A.T.Grecu L.m.Greeven N.A.Grieser L.Grillo S.Gromov B.R.Gruberg Cazon C.Gu m.Guarise m.Guittiere P.A.Günther E.Gushchin A.Guth Y.Guz T.Gys T.Hadavizadeh G.Haefeli C.Haen J.Haimberger S.C.Haines T.Halewood-leagas m.m.Halvorsen P.m.H.milton J.Hammerich Q.Han X.Han E.B.Hansen S.Hansmann-menzemer L.Hao N.Harnew T.Harrison C.Hasse m.Hatch J.He k.Heijhoff k.Heinick. 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m.Patel C.Patrignani C.J.Pawley A.Pearce A.Pellegrino m.Pepe Altarelli S.Perazzini D.Pereima A.Pereiro Castro P.Perret m.Petric k.Petridis A.Petrolini A.Petrov S.Petrucci m.Petruzzo H.Pham A.Philippov R.Piandani L.Pica m.Piccini B.Pietrzyk G.Pietrzyk m.Pili D.Pinci F.Pisani m.Pizzichemi V.Placinta J.Plews m.Plo Casasus F.Polci m.Poli Lener m.Poliakova A.Poluektov N.Polukhina I.Polyakov E.Polycarpo S.Ponce D.Popov S.Popov S.Poslavskii k.Prasanth L.Promberger C.Prouve V.Pugatch V.Puill G.Punzi H.R.Qi W.Qian N.Qin S.Qu R.Quagliani N.V.Raab R.I.Rabadan Trejo B.Rachwal J.H.Rademacker R.Rajagopalan m.Rama m.Ramos Pernas m.S.Rangel F.Ratnikov G.Raven m.Rebollo De miguel F.Redi F.Reiss C.Remon Alepuz Z.Ren V.Renaudin P.k.Resmi R.Ribatti A.m.Ricci S.Ricciardi k.Rinnert P.Robbe G.Robertson A.B.Rodrigues E.Rodrigues J.A.Rodriguez Lopez E.Rodriguez Rodriguez A.Rollings P.Roloff V.Romanovskiy m.Romero Lamas A.Romero Vidal J.D.Roth m.Rotondo m.S.Rudolph T.Ruf R.A.Ruiz Fernandez J.Ruiz Vidal A.Ryzhikov J.Ryzka J.J.Saborido Silva N.Sagidova N.Sahoo B.Saitta m.Salomoni C.Sanchez Gras I.Sanderswood R.Santacesaria C.Santamarina Rios m.Santimaria E.Santovetti D.Saranin G.Sarpis m.Sarpis A.Sarti C.Satriano A.Satta m.Saur D.Savrina H.Sazak L.G.Scantlebury Smead A.Scarabotto S.Schael S.Scherl m.Schiller H.Schindler m.Schmelling B.Schmidt S.Schmitt O.Schneider A.Schopper m.Schubiger S.Schulte m.H.Schune R.Schwemmer B.Sciascia A.Sciuccati S.Sellam A.Semennikov m.Senghi Soares A.Sergi N.Serra L.Sestini A.Seuthe Y.Shang D.m.Shangase m.Shapkin I.Shchemerov L.Shchutska T.Shears L.Shekhtman Z.Shen S.Sheng V.Shevchenko E.B.Shields Y.Shimizu E.Shmanin J.D.Shupperd B.G.Siddi R.Silva Coutinho G.Simi S.Simone m.Singla N.Skidmore R.Skuza T.Skwarnicki m.W.Slater I.Slazyk J.C.Smallwood J.G.Smeaton E.Smith m.Smith A.Snoch L.Soares Lavra m.D.Sokoloff F.J.P.Soler A.Solomin A.Solovev I.Solovyev F.L.Souza De Almeida B.Souza De Paula B.Spaan E.Spadaro Norella E.Spiridenkov P.Spradlin V.Sriskaran F.Stagni m.Stahl S.Stahl S.Stanislaus O.Steinkamp O.Stenyakin H.Stevens S.Stone D.Strekalina F.Suljik J.Sun L.Sun Y.Sun P.Svihra P.N.Swallow k.Swientek A.Szabelski T.Szumlak m.Szymanski S.Taneja A.R.Tanner m.D.Tat A.Terentev F.Teubert E.Thomas D.J.D.Thompson k.A.Thomson H.Tilquin V.Tisserand S.T'Jampens m.Tobin L.Tomassetti G.Tonani X.Tong D.Torres machado D.Y.Tou E.Trifonova S.m.Trilov C.Trippl G.Tuci A.Tully N.Tuning A.Ukleja D.J.Unverzagt E.Ursov A.Usachov A.Ustyuzhanin U.Uwer A.Vagner V.Vagnoni A.Valassi G.Valenti N.Valls Canudas m.van Beuzekom m.Van Dijk H.Van Hecke E.van Herwijnen m.van Veghel R.Vazquez Gomez P.Vazquez Regueiro C.Vázquez Sierra S.Vecchi J.J.Velthuis m.Veltri A.Venkateswaran m.Veronesi m.Vesterinen D.Vieira m.Vieites Diaz X.Vilasis-Cardona E.Vilella Figueras A.Villa P.Vincent F.C.Volle D.vom Bruch A.Vorobyev V.Vorobyev N.Voropaev k.Vos R.Waldi J.Walsh C.Wang J.Wang J.Wang J.Wang J.Wang m.Wang R.Wang Y.Wang Z.Wang Z.Wang Z.Wang J.A.Ward N.k.Watson D.Websdale C.Weisser B.D.C.Westhenry D.J.White m.Whitehead A.R.Wiederhold D.Wiedner G.Wilkinson m.k.Wilk.nson I.Williams m.Williams m.R.J.Williams R.Williams F.F.Wilson W.Wislicki m.Witek L.Witola C.P.Wong G.Wormser S.A.Wotton H.Wu k.Wyllie Z.Xiang D.Xiao Y.Xie A.Xu J.Xu L.Xu m.Xu Q.Xu Z.Xu Z.Xu D.Yang S.Yang Y.Yang Z.Yang Z.Yang L.E.Yeomans H.Yin J.Yu X.Yuan E.Zaffaroni m.Zavertyaev m.Zdybal O.Zenaiev m.Zeng D.Zhang L.Zhang S.Zhang S.Zhang Y.Zhang Y.Zhang A.Zharkova A.Zhelezov Y.Zheng T.Zhou X.Zhou Y.Zhou V.Zhovkovska X.Zhu X.Zhu Z.Zhu V.Zhukov Q.Zou S.Zucchelli D.Zuliani G.Zunica LHCb Collaboration 无 《Chinese Physics C》 SCIE CAS CSCD 2023年第9期1-13,共13页
A first search for the Ξ_(bc)^(+)J/ψΞ_(c)^(+) decay is performed by the LHCb experiment with a data sample of proton-proton collisions, corresponding to an integrated luminosity of 9 fb−1 recorded at centre-of-mass... A first search for the Ξ_(bc)^(+)J/ψΞ_(c)^(+) decay is performed by the LHCb experiment with a data sample of proton-proton collisions, corresponding to an integrated luminosity of 9 fb−1 recorded at centre-of-mass energies of 7, 8, and 13 TeV. Two peaking structures are seen with a local (global) significance of 4.3(2.8) and 4.1(2.4) standard deviations at masses of 6571 and 6694 MeV/c2, respectively. Upper limits are set on the Ξ+bc baryon production cross-section times the branching fraction relative to that of the B+c→J/ψD+s decay at centre-of-mass energies of 8 and 13 TeV, in the Ξ+bc and in the B+c rapidity and transverse-momentum ranges from 2.0 to 4.5 and 0 to 20GeV/c, respectively. Upper limits are presented as a function of the Ξ+bc mass and lifetime. 展开更多
关键词 QCD B physics charm physics spectroscopy
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Search for the rare decays W^(+)→D_(s)^(+)γ and Z→D^(0)γ at LHCb
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作者 R.Aaij A.S.W.Abdelmotteleb +1069 位作者 C.Abellan Beteta F.Abudinén T.Ackernley B.Adeva m.Adinolfi P.Adlarson H.Afsharnia C.Agapopoulou C.A.Aidala Z.Ajaltouni S.Akar k.Ak.ba J.Albrecht F.Alessio m.Alexander A.Alfonso Albero Z.Aliouche P.Alvarez Cartelle R.Amalric S.Amato J.L.Amey Y.Amhis L.An L.Anderlini m.Andersson A.Andreianov m.Andreotti D.Andreou D.Ao F.Archilli A.Artamonov m.Artuso E.Aslanides m.Atzeni B.Audurier S.Bachmann m.Bachmayer J.J.Back A.Bailly-reyre P.Baladron Rodriguez V.Balagura W.Baldini J.Baptista de Souza Leite m.Barbetti R.J.Barlow S.Barsuk W.Barter m.Bartolini F.Baryshnikov J.m.Basels G.Bassi B.Batsukh A.Battig A.Bay A.Beck m.Becker F.Bedeschi I.B.Bediaga A.Beiter V.Belavin S.Belin V.Bellee k.Belous I.Belov I.Belyaev G.Benane G.Bencivenni E.Ben-Haim A.Berezhnoy R.Bernet S.Bernet Andres D.Berninghoff H.C.Bernstein C.Bertella A.Bertolin C.Betancourt F.Betti Ia.Bezshyiko S.Bhasin J.Bhom L.Bian m.S.Bieker N.V.Biesuz S.Bifani P.Billoir A.Biolchini m.Birch F.C.R.Bishop A.Bitadze A.Bizzeti m.P.Blago T.Blake F.Blanc J.E.Blank S.Blusk D.Bobulska J.A.Boelhauve O.Boente Garcia T.Boettcher A.Boldyrev C.S.Bolognani R.Bolzonella N.Bondar F.Borgato S.Borghi m.Borsato J.T.Borsuk S.A.Bouchiba T.J.V.Bowcock A.Boyer C.Bozzi m.J.Bradley S.Braun A.Brea Rodriguez J.Brodzicka A.Brossa Gonzalo J.Brown D.Brundu A.Buonaura L.Buonincontri A.T.Burke C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Calabrese L.Calefice S.Cali R.Calladine m.Calvi m.Calvo Gomez P.Campana D.H.Campora Perez A.F.Campoverde Quezada S.Capelli L.Capriotti A.Carbone G.Carboni R.Cardinale A.Cardini P.Carniti L.Carus A.Casais Vidal R.Caspary G.Casse m.Cattaneo G.Cavallero V.Cavallini S.Celani J.Cerasoli D.Cervenkov A.J.Chadwick m.G.Chapman m.Charles Ph.Charpentier C.A.Chavez Barajas m.Chefdeville C.Chen S.Chen A.Chernov S.Chernyshenko V.Chobanova S.Cholak m.Chrzaszcz A.Chubykin V.Chulikov P.Ciambrone m.F.Cicala X.Cid Vidal G.Ciezarek G.Ciullo P.E.L.Clarke m.Clemencic 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G.Gong I.V.Gorelov C.Gotti J.P.Grabowski T.Grammatico L.A.Granado Cardoso E.Graugés E.Graverini G.Graziani A.T.Grecu L.m.Greeven N.A.Grieser L.Grillo S.Gromov B.R.Gruberg Cazon C.Gu m.Guarise m.Guittiere P.A.Günther E.Gushchin A.Guth Y.Guz T.Gys T.Hadavizadeh C.Hadjivasiliou G.Haefeli C.Haen J.Haimberger S.C.Haines T.Halewood-leagas m.m.Halvorsen P.m.H.milton J.Hammerich Q.Han X.Han E.B.Hansen S.Hansmann-menzemer L.Hao N.Harnew T.Harrison C.Hasse m.Hatch J.He k.Heijhoff C.Henderson R.D.L.Henderson A.m.Hennequin k.Hennessy L.Henry J.Herd J.Heuel A.Hicheur D.Hill m.Hilton S.E.Hollitt J.Horswill R.Hou Y.Hou J.Hu J.Hu W.Hu X.Hu W.Huang X.Huang W.Hulsbergen R.J.Hunter m.Hushchyn D.Hutchcroft P.Ibis m.Idzik D.Ilin P.Ilten A.Inglessi A.Iniukhin A.Ishteev k.Ivshin R.Jacobsson H.Jage S.J.Jaimes Elles S.Jakobsen E.Jans B.k.Jashal A.Jawahery V.Jevtic E.Jiang X.Jiang Y.Jiang m.John D.Johnson C.R.Jones T.P.Jones B.Jost N.Jurik I.Juszczak S.kandybei Y.kang m.karacson D.karpenkov m.karpov J.W.kautz F.keizer D.m.keller m.kenzie T.ketel B.khanji A.kharisova S.kholodenko G.khreich T.kirn V.S.kirsebom O.kitouni S.klaver N.kleijne k.k.imaszewsk. m.R.kmiec S.koliiev A.kondybayeva A.konoplyannikov P.kopciewicz R.kopecna P.koppenburg m.korolev I.kostiuk O.kot S.kotriakhova A.kozachuk P.kravchenko L.kravchuk R.D.krawczyk m.kreps S.kretzschmar P.krokovny W.krupa W.krzemien J.kubat S.kubis W.kucewicz m.kucharczyk V.kudryavtsev A.kupsc D.Lacarrere G.Lafferty A.Lai A.Lampis D.Lancierini C.Landesa Gomez J.J.Lane R.Lane G.Lanfranchi C.Langenbruch J.Langer O.Lantwin T.Latham F.Lazzari m.Lazzaroni R.Le Gac S.H.Lee R.Lefèvre A.Leflat S.Legotin P.Lenisa O.Leroy T.Lesiak B.Leverington A.Li H.Li k.Li P.Li P.-R.Li S.Li T.Li T.Li Y.Li Z.Li X.Liang C.Lin T.Lin R.Lindner V.Lisovskyi R.Litvinov G.Liu H.Liu Q.Liu S.Liu A.Lobo Salvia A.Loi R.Lollini J.Lomba Castro I.Longstaff J.H.Lopes A.Lopez Huertas S.López Soliao G.H.Lovell Y.Lu C.Lucarelli D.Lucchesi S.Luchuk m.Lucio martinez V.Lukashenko Y.Luo A.Lupato E.Luppi A.Lusiani k.Lynch X.-R.Lyu L.ma R.ma S.maccolini F.machefert F.maciuc I.mackay V.macko P.mackowiak L.R.madhan.mohan A.maevskiy D.maisuzenko m.W.majewski J.J.malczewski S.malde B.malecki A.malinin T.maltsev G.manca G.mancinelli C.mancuso D.manuzzi C.A.manzari D.marangotto J.F.marchand U.marconi S.mariani C.marin Benito J.marks A.m.marshall P.J.marshall G.martelli G.martellotti L.martinazzoli m.martinelli D.martinez Santos F.martinez Vidal A.massafferri m.materok R.matev A.mathad V.matiunin C.matteuzzi k.R.mattioli A.mauri E.maurice J.mauricio m.mazurek m.mcCann L.mcconnell T.H.mcGrath N.T.mcHugh A.mcNab R.mcNulty J.V.mead B.meadows G.meier D.melnychuk S.meloni m.merk A.merli L.meyer Garcia D.miao m.mikhasenko D.A.milanes E.millard m.milovanovic m.-N.minard A.minotti T.miralles S.E.mitchell B.mitreska D.S.mitzel A.madden R.A.moh.mmed R.D.moise S.mokhnenko T.m.mbacher m.monk I.A.monroy S.monteil m.morandin G.morello m.J.morello J.moron A.B.morris A.G.morris R.mountain H.mu E.muh.mmad F.muhe.m m.mulder k.müller C.H.murphy D.murray R.murta P.muzzetto P.Naik T.Nakada R.Nandakumar T.Nanut I.Nasteva m.Needham N.Neri S.Neubert N.Neufeld P.Neustroev R.Newcombe J.Nicolini E.m.Niel S.Nieswand N.Nikitin N.S.Nolte C.Normand J.Novoa Fernandez C.Nunez A.Oblakowska-mucha V.Obraztsov T.Oeser D.P.O'Hanlon S.Okamura R.Oldeman F.Oliva C.J.G.Onderwater R.H.O'Neil J.m.Otalora Goicochea T.Ovsiannikova P.Owen A.Oyanguren O.Ozcelik k.O.Padek.n B.Pagare P.R.Pais T.Pajero A.Palano m.Palutan Y.Pan G.Panshin L.Paolucci A.Papanestis m.Pappagallo L.L.Pappalardo C.Pappenheimer W.Parker C.Parkes B.Passalacqua G.Passaleva A.Pastore m.Patel C.Patrignani C.J.Pawley A.Pearce A.Pellegrino m.Pepe Altarelli S.Perazzini D.Pereima A.Pereiro Castro P.Perret m.Petric k.Petridis A.Petrolini A.Petrov S.Petrucci m.Petruzzo H.Pham A.Philippov R.Piandani L.Pica m.Piccini B.Pietrzyk G.Pietrzyk m.Pili D.Pinci F.Pisani m.Pizzichemi V.Placinta J.Plews m.Plo Casasus F.Polci m.Poli Lener m.Poliakova A.Poluektov N.Polukhina I.Polyakov E.Polycarpo S.Ponce D.Popov S.Popov S.Poslavskii k.Prasanth L.Promberger C.Prouve V.Pugatch V.Puill G.Punzi H.R.Qi W.Qian N.Qin S.Qu R.Quagliani N.V.Raab R.I.Rabadan Trejo B.Rachwal J.H.Rademacker R.Rajagopalan m.Rama m.Ramos Pernas m.S.Rangel F.Ratnikov G.Raven m.Rebollo De miguel F.Redi J.Reich F.Reiss C.Remon Alepuz Z.Ren P.k.Resmi R.Ribatti A.m.Ricci S.Ricciardi k.Richardson m.Richardson-Slipper k.Rinnert P.Robbe G.Robertson A.B.Rodrigues E.Rodrigues E.Rodriguez Fernandez J.A.Rodriguez Lopez E.Rodriguez Rodriguez D.L.Rolf A.Rollings P.Roloff V.Romanovskiy m.Romero Lamas A.Romero Vidal J.D.Roth m.Rotondo m.S.Rudolph T.Ruf R.A.Ruiz Fernandez J.Ruiz Vidal A.Ryzhikov J.Ryzka J.J.Saborido Silva N.Sagidova N.Sahoo B.Saitta m.Salomoni C.Sanchez Gras I.Sanderswood R.Santacesaria C.Santamarina Rios m.Santimaria E.Santovetti D.Saranin G.Sarpis m.Sarpis A.Sarti C.Satriano A.Satta m.Saur D.Savrina H.Sazak L.G.Scantlebury Smead A.Scarabotto S.Schael S.Scherl m.Schiller H.Schindler m.Schmelling B.Schmidt S.Schmitt O.Schneider A.Schopper m.Schubiger S.Schulte m.H.Schune R.Schwemmer B.Sciascia A.Sciuccati S.Sellam A.Semennikov m.Senghi Soares A.Sergi N.Serra L.Sestini A.Seuthe Y.Shang D.m.Shangase m.Shapkin I.Shchemerov L.Shchutska T.Shears L.Shekhtman Z.Shen S.Sheng V.Shevchenko B.Shi E.B.Shields Y.Shimizu E.Shmanin R.Shorkin J.D.Shupperd B.G.Siddi R.Silva Coutinho G.Simi S.Simone m.Singla N.Skidmore R.Skuza T.Skwarnicki m.W.Slater J.C.Smallwood J.G.Smeaton E.Smith k.Smith m.Smith A.Snoch L.Soares Lavra m.D.Sokoloff F.J.P.Soler A.Solomin A.Solovev I.Solovyev R.Song F.L.Souza De Almeida B.Souza De Paula B.Spaan E.Spadaro Norella E.Spedicato E.Spiridenkov P.Spradlin V.Sriskaran F.Stagni m.Stahl S.Stahl S.Stanislaus E.N.Stein O.Steinkamp O.Stenyakin H.Stevens S.Stone D.Strekalina Y.S Su F.Suljik J.Sun L.Sun Y.Sun P.Svihra P.N.Swallow k.Swientek A.Szabelski T.Szumlak m.Szymanski Y.Tan S.Taneja m.D.Tat A.Terentev F.Teubert E.Thomas D.J.D.Thompson k.A.Thomson H.Tilquin V.Tisserand S.T'Jampens m.Tobin L.Tomassetti G.Tonani X.Tong D.Torres machado D.Y.Tou S.m.Trilov C.Trippl G.Tuci A.Tully N.Tuning A.Ukleja D.J.Unverzagt A.Usachov A.Ustyuzhanin U.Uwer A.Vagner V.Vagnoni A.Valassi G.Valenti N.Valls Canudas m.van Beuzekom m.Van Dijk H.Van Hecke E.van Herwijnen C.B.Van Hulse m.van Veghel R.Vazquez Gomez P.Vazquez Regueiro C.Vázquez Sierra S.Vecchi J.J.Velthuis m.Veltri A.Venkateswaran m.Veronesi m.Vesterinen D.Vieira m.Vieites Diaz X.Vilasis-Cardona E.Vilella Figueras A.Villa P.Vincent F.C.Volle D.vom Bruch A.Vorobyev V.Vorobyev N.Voropaev k.Vos C.Vrahas R.Waldi J.Walsh G.Wan C.Wang G.Wang J.Wang J.Wang J.Wang J.Wang m.Wang R.Wang X.Wang Y.Wang Z.Wang Z.Wang Z.Wang J.A.Ward N.k.Watson D.Websdale Y.Wei C.Weisser B.D.C.Westhenry D.J.White m.Whitehead A.R.Wiederhold D.Wiedner G.Wilkinson m.k.Wilk.nson I.Williams m.Williams m.R.J.Williams R.Williams F.F.Wilson W.Wislicki m.Witek L.Witola C.P.Wong G.Wormser S.A.Wotton H.Wu J.Wu k.Wyllie Z.Xiang D.Xiao Y.Xie A.Xu J.Xu L.Xu L.Xu m.Xu Q.Xu Z.Xu Z.Xu D.Yang S.Yang X.Yang Y.Yang Z.Yang Z.Yang L.E.Yeomans V.Yeroshenko H.Yeung H.Yin J.Yu X.Yuan E.Zaffaroni m.Zavertyaev m.Zdybal O.Zenaiev m.Zeng C.Zhang D.Zhang L.Zhang S.Zhang S.Zhang Y.Zhang Y.Zhang A.Zharkova A.Zhelezov Y.Zheng T.Zhou X.Zhou Y.Zhou V.Zhovkovska X.Zhu X.Zhu Z.Zhu V.Zhukov Q.Zou S.Zucchelli D.Zuliani G.Zunica LHCb Collaboration 《Chinese Physics C》 SCIE CAS CSCD 2023年第9期14-26,共13页
A search for the rare decays W^(+)→D_(s)^(+)γ and Z→D0γis performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13TeV,corresponding to an integrated luminosity... A search for the rare decays W^(+)→D_(s)^(+)γ and Z→D0γis performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13TeV,corresponding to an integrated luminosity of 2.0fb−1.No significant signal is observed for either decay mode and upper limits on their branching fractions are set using W^(+)→D_(s)^(+)γ and Z→μ+μ−decays as normalization channels.The upper limits are 6.5×10^(−4) and 2.1×10^(−3) at 95% confidence level for the W^(+)→D_(s)^(+)γ and Z→D^(0)γ decay modes,respectively.This is the first reported search for the Z→D^(0)γ decay,while the upper limit on the W+→D+sγbranching fraction improves upon the previous best limit. 展开更多
关键词 W/Z boson rare decay upper limit of branching fraction
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