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Measurement of D*(+/-) meson production in jets from pp collisions at root s=7 TeV with the ATLAS detector
ATLAS collaboration
2012
发表期刊PHYSICAL REVIEW D
卷号85期号:5
通讯作者Aad, G (reprint author), SUNY Albany, Albany, NY 12222 USA.
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.
关键词PRODUCTION CROSS-SECTION BOTTOM-QUARK PRODUCTION D-STAR PRODUCTION P(P)OVER-BAR COLLISIONS PARTON DISTRIBUTIONS COLLIDER LHC
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.85.052005
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000301647300002
引用统计
被引频次:6[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/311005/213197
专题实验物理中心
作者单位中国科学院高能物理研究所
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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).
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