The differential production cross section of the phi(1020) meson in root s=7 TeV pp collisions measured with the ATLAS detector

	The differential production cross section of the phi(1020) meson in root s=7 TeV pp collisions measured with the ATLAS detector
	ATLAS collaboration
刊名	EUROPEAN PHYSICAL JOURNAL C
	2014
卷号	74 期号:7
关键词	FRAGMENTATION
通讯作者	Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
英文摘要	A measurement is presented of the phi x BR(phi -> K+ K-) production cross section at root s = 7 TeV using pp collision data corresponding to an integrated luminosity of 383 mu b(-1), collected with the ATLAS experiment at the LHC. Selection of phi(1020) mesons is based on the identification of charged kaons by their energy loss in the pixel detector. The differential cross section is measured as a function of the transverse momentum, pT, phi, and rapidity, y(phi), of the phi(1020) meson in the fiducial region 500 < pT,phi < 1200MeV, vertical bar y phi\| < 0.8, kaon p(T), (K) > 230 MeV and kaon momentum p(K) < 800 MeV. The integrated phi(1020)-meson production cross section in this fiducial range is measured to be sigma(phi) x BR(phi -> K+ K-) = 570 +/- 8 (stat) +/- 66 (syst) +/- 20 (lumi) mu b.
学科主题	Physics
类目[WOS]	Physics, Particles & Fields
收录类别	SCI
语种	英语
WOS记录号	WOS:000338719300001
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213738]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	ATLAS collaboration. The differential production cross section of the phi(1020) meson in root s=7 TeV pp collisions measured with the ATLAS detector[J]. EUROPEAN PHYSICAL JOURNAL C,2014,74(7).
APA	ATLAS collaboration.(2014).The differential production cross section of the phi(1020) meson in root s=7 TeV pp collisions measured with the ATLAS detector.EUROPEAN PHYSICAL JOURNAL C,74(7).
MLA	ATLAS collaboration."The differential production cross section of the phi(1020) meson in root s=7 TeV pp collisions measured with the ATLAS detector".EUROPEAN PHYSICAL JOURNAL C 74.7(2014).