CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
High p(T) nonphotonic electron production in p plus p collisions at root s=200 GeV
Agakishiev, H.; Aggarwal, M. M.; Ahammed, Z.; Cai, X. Z.(蔡翔舟); Lee, J. H.; Ma, G. L.(马国亮); Ma, Y. G.(马余刚); Wang, J. S.; Wang, Q.; Wang, X. L.; Wang, Y.; Zhong, C.; Zhou, W.; Zhu, Y. H.; Zoulkarneev, R.; Zoulkarneeva, Y.
2011
Source PublicationPHYSICAL REVIEW D
ISSN1550-7998
Volume83Issue:5
AbstractWe present the measurement of nonphotonic electron production at high transverse momentum (p(T) > 2.5 GeV/c) in p + p collisions at root s = 200 GeV using data recorded during 2005 and 2008 by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The measured cross sections from the two runs are consistent with each other despite a large difference in photonic background levels due to different detector configurations. We compare the measured nonphotonic electron cross sections with previously published RHIC data and perturbative quantum chromodynamics calculations. Using the relative contributions of B and D mesons to nonphotonic electrons, we determine the integrated cross sections of electrons (e++e-2/2) at 3 GeV/c < p(T) < 10 GeV/c from bottom and charm meson decays to be [(d sigma((B -> e)+(B -> D -> e))/(dy(e))](ye=0) 4.0 +/- 0.5(stat) +/- 1.1(syst) nb and [(d sigma(D -> e))/(dy(e))](ye=0) = 6.2 +/- 0.7(stat) +/- 1.5(syst) nb, respectively.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000288647900001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/9518
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Agakishiev, H.,Aggarwal, M. M.,Ahammed, Z.,et al. High p(T) nonphotonic electron production in p plus p collisions at root s=200 GeV[J]. PHYSICAL REVIEW D,2011,83(5).
APA Agakishiev, H..,Aggarwal, M. M..,Ahammed, Z..,Cai, X. Z..,Lee, J. H..,...&Zoulkarneeva, Y..(2011).High p(T) nonphotonic electron production in p plus p collisions at root s=200 GeV.PHYSICAL REVIEW D,83(5).
MLA Agakishiev, H.,et al."High p(T) nonphotonic electron production in p plus p collisions at root s=200 GeV".PHYSICAL REVIEW D 83.5(2011).
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