upsilon cross section in p plus p collisions at root s=200 GeV

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	upsilon cross section in p plus p collisions at root s=200 GeV
	Abelev, BI ; Aggarwal, MM ; Bunzarov, I ; Burton, TP ; Cai, XZ（蔡翔舟） ; Chen, HF ; Chen, JH（陈金辉） ; Chen, JY ; Cheng, J ; Clarke, RF ; Dong, X ; Han, LX ; Huang, HZ ; Huo, L ; Jin, F ; Kang, K ; Lee, CH ; Lee, JH ; Li, C ; Li, L ; Li, N ; Li, W ; Li, X ; Li, X ; Li, Y ; Li, Z ; Lin, G ; Lisa, MA ; Liu, F ; Liu, H ; Liu, J ; Ljubicic, T ; Llope, WJ ; Longacre, RS ; Love, WA ; Lu, Y ; Ma, GL（马国亮） ; Ma, YG（马余刚） ; Shao, M ; Sharma, M ; Shi, SS ; Sun, XM ; Sun, Y ; Sun, Z ; Surrow, B ; Symons, TJM ; de Toledo, AS ; Takahashi, J ; Tang, AH ; Tang, Z ; Tarini, LH ; Tarnowsky, T ; Thein, D ; Thomas, JH ; Tian, J ; Timmins, AR ; Timoshenko, S ; Tlusty, D ; Tokarev, M ; Trainor, TA ; Viyogi, YP ; Vokal, S ; Voloshin, SA ; Wada, M ; Walker, M ; Wang, F ; Wang, G ; Wang, H ; Wang, JS ; Wang, Q ; Wang, XL ; Wang, Y ; Webb, G ; Webb, JC ; Westfall, GD ; Whitten, C ; Wieman, H ; Wingfield, E ; Wissink, SW ; Witt, R ; Wu, Y ; Xie, W ; Xu, N ; Xu, QH ; Xu, W ; Xu, Y ; Xu, Z ; Xue, L ; Yang, Y ; Yepes, P ; Yip, K ; Yoo, IK ; Yue, Q ; Zawisza, M ; Zbroszczyk, H ; Zhan, W ; Zhang, S ; Zhang, WM ; Zhang, XP ; Zhang, Y ; Zhang, ZP ; Zhao, J ; Zhong, C ; Zhou, J ; Zhou, W ; Zhu, X ; Zhu, YH ; Zoulkarneev, R ; Zoulkarneeva, Y
刊名	PHYSICAL REVIEW D
	2010
卷号	82 期号:1 页码:17
ISSN号	1550-7998
通讯作者	Abelev, BI (reprint author), Univ Illinois, Chicago, IL 60607 USA
英文摘要	We report on a measurement of the gamma(1S + 2S + 3S) -> e(+)e(-) cross section at midrapidity in p + p collisions at root s = 200 GeV. We find the cross section to be 114 +/- 38(stat + fit)(-24)(+23)(syst) pb. Perturbative QCD calculations at next-to-leading order in the color evaporation model are in agreement with our measurement, while calculations in the color singlet model underestimate it by 2 sigma. Our result is consistent with the trend seen in world data as a function of the center-of-mass energy of the collision and extends the availability of gamma data to RHIC energies. The dielectron continuum in the invariant-mass range near the gamma is also studied to obtain a combined yield of e(+)e(-) pairs from the sum of the Drell-Yan process and b-(b) over bar production.
学科主题	Astronomy & Astrophysics; Physics
收录类别	SCI
语种	英语
WOS记录号	WOS:000280475500002
公开日期	2012-04-11
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/7109]
专题	上海应用物理研究所_中科院上海应用物理研究所2004-2010年
推荐引用方式 GB/T 7714	Abelev, BI,Aggarwal, MM,Bunzarov, I,et al. upsilon cross section in p plus p collisions at root s=200 GeV[J]. PHYSICAL REVIEW D,2010,82(1):17.
APA	Abelev, BI.,Aggarwal, MM.,Bunzarov, I.,Burton, TP.,Cai, XZ.,...&Zoulkarneeva, Y.(2010).upsilon cross section in p plus p collisions at root s=200 GeV.PHYSICAL REVIEW D,82(1),17.
MLA	Abelev, BI,et al."upsilon cross section in p plus p collisions at root s=200 GeV".PHYSICAL REVIEW D 82.1(2010):17.