期刊文献+

发现“四夸克物质”

The Discovery of the Four-Quark Matter
下载PDF
导出
摘要 科学研究是为了探索自然界的未知规律。粒子物理学家相信自然界存在四夸克物质,然而却一直没有找到确凿的实验证据。2013年3月,北京谱仪(BESⅢ)国际合作组实验宣布发现一个新的带电粒子,很可能就是人们一直寻找的四夸克物质。 Quarks are the building blocks of matter.In 2013,the BESIII experiment discovered the Zc(3900).A new charged slate,which has at least four quarks inside,is very probably a long searched four-quark state.This discovery opens fresh vista on matter.
出处 《科学》 北大核心 2014年第6期17-20,4,共4页 Science
  • 相关文献

参考文献13

  • 1Fritzsch H, Gell-Mann M, Leutwyler H. Advantages of the color octet gluon picture. Phys Lett B, 1973,47 : 365.
  • 2Liu T B, Mao Y J, Ma B-Q. Present status on experimental search for pentaquarks. Int J Mod Phys A, 2014,29:1430020.
  • 3Choi S K, et al (Belie Collaboration ). Observation of a narrow charmoniumlike state in exclusive B^+→K^±π^+π^-J/ψ decays. Phys Rev Lett, 2003,91: 262001.
  • 4Aubert B, et al (BABAR Collaboration ). Observation of a broad structure in the π^+π^-J/ψ mass spectrum around 4.26GeV/c^2.Phys Rev Lett, 2005,95:142001.
  • 5Yuan C Z, et al (Belle Collaboration). Measurement of the e^+e^-→π^+π^-J/ψ cross section via initial-state radiation at Belle. Phys Rev Lett, 2007,99:182004.
  • 6Ablikim M ,et al (BESIII Collaboration ). Observation of a charged charmoniumlike structure in e^+e^-→π^+π^-J/ψ at √s=4.26GeV. Phys Rev Lett, 2013,110:252001.
  • 7Liu Z Q,et al (Belle Collaboration). Study of e^+e^-→π^+π^-J/ψ and observation of a charged charmoniumlike state at Belle. Phys Rev Lett, 2013,110:252002.
  • 8Xiao T, Dobbs S, Tomaradze A, et al. Observation of the charged hadron Zc^±(3900)and evidence for the neutral Zc^0 (3900) in e^+e^-→π^+π^-J/ψ at √s=4170MeV. Phys Lett B, 2013,727:366.
  • 9Ablikim M, et al (BESIII Collaboration). Observation of a charged charmoniumlike structure Zc(4020) and search for the Zc(3900) in e^+e^-→π^+π^-hc. Phys Rev Lett, 2013,111: 242001.
  • 10Swanson E. New Particle Hints at Four-Quark Matter. Physics, 2013,6: 69.

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部