Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector
ATLAS collaboration
刊名JOURNAL OF HIGH ENERGY PHYSICS
2014
期号4
关键词MULTIPARTON INTERACTIONS HEAVY-QUARKONIUM QCD DISTRIBUTIONS PHYSICS
学科分类Physics
DOI10.1007/JHEP04(2014)172
通讯作者Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
英文摘要The process pp -> W (+/-) J/psi provides a powerful probe of the production mechanism of charmonium in hadronic collisions, and is also sensitive to multiple parton interactions in the colliding protons. Using the 2011 ATLAS dataset of 4.5 fb(-1) of root s= 7 TeV pp collisions at the LHC, the first observation is made of the production of W (+/-) + prompt J/psi events in hadronic collisions, using W (+/-) -> mu nu(mu) and J/psi -> mu(+)mu(-) center dot A yield of W (+/-) + prompt J/psi events is observed, with a statistical significance of 5.1 sigma. The production rate as a ratio to the inclusive W (+/-) boson production rate is measured, and the double parton scattering contribution to the cross section is estimated.
类目[WOS]Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000335732000001
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213703
专题中国科学院高能物理研究所_实验物理中心_期刊论文
作者单位中国科学院高能物理研究所
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ATLAS collaboration. Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014(4).
APA ATLAS collaboration.(2014).Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector.JOURNAL OF HIGH ENERGY PHYSICS(4).
MLA ATLAS collaboration."Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector".JOURNAL OF HIGH ENERGY PHYSICS .4(2014).
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