High p(T) nonphotonic electron production in p plus p collisions at root s=200 GeV
文献类型：期刊论文
| 作者 | 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. |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2011 |
| 卷号 | 83期号:5 |
| ISSN号 | 1550-7998 |
| 英文摘要 | We 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. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000288647900001 |
| 公开日期 | 2012-07-04 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/9518]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 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). |
入库方式： OAI收割
来源：上海应用物理研究所
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