Measurement of D*(+/-) meson production in jets from pp collisions at root s=7 TeV with the ATLAS detector

	*Measurement of D(+/-) meson production in jets from pp collisions at root s=7 TeV with the ATLAS detector**
	ATLAS collaboration
刊名	PHYSICAL REVIEW D
	2012
卷号	85 期号:5
关键词	PRODUCTION CROSS-SECTION BOTTOM-QUARK PRODUCTION D-STAR PRODUCTION P(P)OVER-BAR COLLISIONS PARTON DISTRIBUTIONS COLLIDER LHC
通讯作者	Aad, G (reprint author), SUNY Albany, Albany, NY 12222 USA.
英文摘要	This paper reports a measurement of D(+/-) meson production in jets from proton- proton collisions at a center- of- mass energy of root s = 7 TeV at the CERN Large Hadron Collider. The measurement is based on a data sample recorded with the ATLAS detector with an integrated luminosity of 0.30 pb(-1) for jets with transverse momentum between 25 and 70 GeV in the pseudorapidity range vertical bar eta vertical bar <2.5. D(+/-) mesons found in jets are fully reconstructed in the decay chain: D(+/-)-> D-0 pi(+), D-0 -> K-pi(+), and its charge conjugate. The production rate is found to be N(D(+/-))/N(jet) = 0.025 +/- 0.001(stat.) +/- 0.004(syst.) for D*(+/-) mesons that carry a fraction z of the jet momentum in the range 0.3< z< 1. Monte Carlo predictions fail to describe the data at small values of z, and this is most marked at low jet transverse momentum.
学科主题	Astronomy & Astrophysics; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别	SCI
语种	英语
WOS记录号	WOS:000301647300002
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213197]
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. Measurement of D*(+/-) meson production in jets from pp collisions at root s=7 TeV with the ATLAS detector[J]. PHYSICAL REVIEW D,2012,85(5).
APA	ATLAS collaboration.(2012).Measurement of D*(+/-) meson production in jets from pp collisions at root s=7 TeV with the ATLAS detector.PHYSICAL REVIEW D,85(5).
MLA	ATLAS collaboration."Measurement of D*(+/-) meson production in jets from pp collisions at root s=7 TeV with the ATLAS detector".PHYSICAL REVIEW D 85.5(2012).