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Study of the production of Λ_b^0 band ~0 hadrons in pp collisions and first measurement of the Λ_b^0→J/ψpK^- branching fraction 被引量:23
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作者 O.Kochebina M.Kolpin +398 位作者 I.Komarov R.F.Koopman P.Koppenburg M.Kozeiha L.Kravchuk K.Kreplin M.Kreps G.Krocker P.Krokovny F.Kruse W.Krzemien W.Kucewicz M.Kucharczyk V.Kudryavtsev A.K.Kuonen K.Kurek T.Kvaratskheliya D.Lacarrere G.Lafferty A.Lai D.Lambert G.Lanffanchi C.Langenbruch B.Langhans T.Latham C.Lazzeroni R.Le Gac J.van Leerdam J.-P.Lees R.Lefevre A.Leflat J.Lefrancois E.Lemos Cid O.Leroy T.Lesiak B.Leverington Y.Li T.Likhomanenko M.Liles R.Lindner C.Linn F.Lionetto B.Liu X.Liu D.Loh I.Longstaff J.H.Lopes D.Lucchesi M.Lucio Martinez H.Luo A.Lupato E.Luppi O.Lupton A.Lusiani F.Machefert F.Maciuc O.Maev K.Maguire S.Malde A.Malinin G.Manca G.Mancinelli P.Manning A.Mapelli J.Maratas J.F.Marchand U.Marconi C.Marin Benito P.Marino J.Marks G.Martellottil M.Martin M.Martinelli D.Martinez Santos F.Martinez Vidal D.Martins Tostes A.Massafferri R.Matev A.Mathad Z.Mathe C.Matteuzzi A.Mauri B.Maurin A.Mazurov M.McCann J.McCarthy A.McNab R.McNulty B.Meadows F.Meier M.Meissner D.Melnychuk M.Merk E Michielin D.A.Milanes M.-N.Minard D.S.Mitzel J.Molina Rodrigue I.A.Monroy S.Monteil M.Morandin P.Morawski A.Morda M.J.Morello J.Moron A.B.Morris R.Mountain F.Muheim D.Miiller J.Muller K.Muller V.Muller M.Mussini B.Muster P.Naik T.Nakada R.Nandakumar a.nandi I.Nasteva M.Needham N.Neri S.Neubert N.Neufeld M.Neuner A.D.Nguyen T.D.Nguyen C.Nguyen-Mau V.Niess R.Niet N.Nikitin T.Nikodem D.Ninci A.Novoselov D.P.O'Hanlon A.Oblakowska-Mucha V.Obraztsov S.Ogilvy O.Okhrimenko R.Oldeman C.J.G.Onderwater B.Osorio Rodrigues J.M.Otalora Goicochea A.Otto P.Owen A.Oyanguren A.Palano F.Palombo M.Palutan J.Panman A.Papanestis M.Pappagallo L.L.Pappalardo C.Pappenheimer C.Parkes G.Passaleva G.D.Patel M.Patel C.Patrignani A.Pearce A.Pellegrino G.Penso M.Pepe Altarelli S.Perazzini P.Perret L.Pescatore K.Petridis A.Petrolini M.Petruzzo E.Picatoste Olloqui B.Pietrzyk T:.Pilar D.Pinci A.Pistone A.Piucci S.Playfer M.Plo Casasus T.Poikela F.Polci A.Poluektov I.Polyakov E.Polycarpo A.Popov D.Popov B.Popovici C.Potterat E.Price J.D.Price J.Prisciandaro A.Pritchard C.Prouve V.Pugatch A.Puig Navarro G.Punzi W.Qian R.Quagliani B.Rachwal J.H.Rademacker M.Rama M.S.Rangel I.Raniuk N.Rauschmayr G.Raven F.Redi S.Reichert M.M.Reid A.C.dos Reis S.Ricciardi S.Richards M.Rihl K.Rinnert V.Rives Molina P.Robbe A.B.Rodrigues E.Rodrigues J.A.Rodriguez Lopez P.Rodriguez Perez S.Roiser V.Romanovsky A.Romero Vidalt J.W.R onayne M.Rotondo J.Rouvinet T.Ruf P.Ruiz Valls J.J.Saborido Silva N.Sagidova P.Sail B.Saitta V.Salustino Guimaraes C.Sanchez Mayordomo B.Sanmartin Sedes R.Santacesaria C.Santamarina Rios M.Santimaria E.Santovetti A.Sarti C.Satriano A.Satta D.M.Saunders D.Savrina M.Schiller H.Schindler M.Schlupp M.Schmelling T.Schmelzer B.Schmidt O.Schneider A.Schopper M.Schubiger M.-H.Schune R.Schwemmer B.Sciascia A.Sciubba A.Semennikov N.Serra J.Serrano L.Sestini P.Seyfert M.Shapkin I.Shapoval Y.Shcheglov T.Shears L.Shekhtman V.Shevchenko A.Shires B.G.Siddi R.Silva Coutinho L.Silva de Oliveira G.Simi M.Sirendi N.Skidmore T.Skwarnicki E.Smith E.Smith I.T.Smith J.Smith M.Smith H.Snoek M.D.Sokoloff F.J.P.Soler F.Soomro D.Souza B.Souza De Paula B.Spaan P.Spradlin S.Sridharan F.Stagni M.Stahl S.Stahl S.Stefkova O.Steinkamp O.Stenyakin S.Stevenson S.Stoica S.Stone B.Storaci S.Stracka M.Straticiuc U.Straumann L.Sun W.Sutcliffe K.Swientek S.Swientek V.Syropoulos M.Szczekowski P.Szczypka T.Szumlak S.T'Jampens A.Tayduganov T.Tekampe M.T eklishyn G.Teilarini F.Teubert C.Thomas E.Thomas J.van Tilburg V.Tisserand M.Tobin J.Todd S.Tolk L.Tomassetti D.Tonelli S.Topp-Joergensen N.Torr E.Tournefier S.Tourneur K.Trabelsi M.T.Tran M.Tresch A.Trisovic A.Tsaregorodtsev P.Tsopelas N.Tuning A.Ukleja A.Ustyuzhanin U.Uwer C.Vacca V.Vagnonit G.Valentit A.Vallier R.Vazquez Gomez P.Vazquez Regueiro C.Vazquez Sierra S.Vecchi J.J.Velthuis M.Veltri G.Veneziano M.Vesterinen B.Viaud D.Vieira M.Vieites Diaz X.Vitasis-Cardona V.Volkov A.Vollhardt D.Volyanskyy D.Voong A.Vorobyev V.Vorobyev C.Voβ J.A.de Vries R.Waldi C.Wallace R.Wallace J.Walsh S.Wandernoth J.Wang D.R.Ward N.K.Watson D.Websdale A.Weiden M.Whitehead G.Wilkinson M.Wilkinson M.Williams M.P.Williams T.Williams F.F.Wilson J.Wimberley J.Wishahi W.Wislicki M.Witek G.Wormser S.A.Wotton S.Wright K.Wyllie Y.Xie Z.Xu Z.Yang J.Yu X.Yuan O.Yushchenko M.Zangoli M.Zavertyaev L.Zhang Y.Zhang A.Zhelezov A.Zhokhov L.Zhong S.Zucchelli 《Chinese Physics C》 SCIE CAS CSCD 2016年第1期1-16,共16页
The product of the ∧0/b (-B/0) differential production cross-section and the branching fraction of the decay ∧0/b→ J/ψ pK-(-B/0→ J/ψ-K*(892)0)is measured as a function of the beauty hadron transverse mome... The product of the ∧0/b (-B/0) differential production cross-section and the branching fraction of the decay ∧0/b→ J/ψ pK-(-B/0→ J/ψ-K*(892)0)is measured as a function of the beauty hadron transverse momentum, PT, and rapidity, y. The kinematic region of the measurements is pT〈20 GeV/c and 2.0 〈g〈4.5.The measurements use a data sample corresponding to an integrated luminosity of 3fb-1 collected by the LHCb detector in pp collisions at centre-of-mass energies √s=7 TeV in 2011 and √s=8 TeV in 2012. Based on previous LHCb results of the fragmentation fraction ratio,f∧0/b/fd,the branching fraction of the decay ∧0/b→ J/ψ pK-is measured to be B(∧0/b→ J/ψ pK-)=(3.17±0.04±0.07±0.34+0.45/-0.28)×10-4,where the first uncertainty is statistical, the second is systematic, the third is due to the uncertainty on the branching fraction of the decay -B/0 →J/ψ-K*(892)0,and the fourth is due to the knowledge of f∧0/b/fd.The sum of the asymmetries in the production and decay between ∧0/b and ∧0/bis also measured as a function of PT and y.The previously published branching fraction of ∧0/b→ J/ψ pπ-,relative to that of ∧0/b→ J/ψ pK-,is updated. The branching fractions of ∧0/b→P+c(→ J/ψp)K-are determined. 展开更多
关键词 production cross-section branching fraction b hadrons proton-proton collisions
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Search for the doubly charmed baryon ■ 被引量:2
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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 Akiba 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.Durham 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.Hamilton 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.Heinicke 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.Kim T.Kirn V.S.Kirsebom S.Klaver K.Klimaszewski 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.Kuonen 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.Mombacher 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.Muheim 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.Zarebski 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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