Measurements of the energy dependence of the analyzing power in pp elastic scattering in the CNI region

被引：6
|
作者：
Bazilevsky, A. [1 ]
Alekseev, I. [2 ]
Aschenauer, E.
Atoyan, G.
Bravar, A. [3 ]
Bunce, G.
Boyle, K. [4 ]
Gill, R.
Huang, H.
Lee, S. [5 ]
Makdisi, Y.
Morozov, B.
Nakagawa, I. [6 ]
Okada, H.
Svirida, D. [2 ]
Zelenski, A.
机构：
[1] Brookhaven Natl Lab, Upton, NY 11973 USA
[2] Inst Theoret & Expt Phys, Moscow 117259, Russia
[3] Univ Geneva, CH-1205 Geneva, Switzerland
[4] RIKEN BNL Res Ctr, Upton, NY 11973 USA
[5] SUNY Stony Brook, Stony Brook, NY 11794 USA
[6] RIKEN, Wako, Saitama 3510198, Japan
来源：
19TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM (SPIN2010), PT 2 | 2011年 / 295卷
关键词：
A(N);
D O I：
10.1088/1742-6596/295/1/012096
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We present new measurements of the analyzing power A(N) in proton-proton elastic scattering in the Coulomb-Nuclear Interference region at root s=7.7 and 21.7 GeV obtained with the polarized atomic hydrogen jet target at RHIC. These measurements complement our earlier results at root s=6.8 and 13.7 GeV confirming the presence of a hadronic helicity flip amplitude contribution in proton-proton elastic scattering at lower energies (root s <8 GeV), while higher energy data (root s >13 GeV) are consistent with no hadronic helicity flip contribution.
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页数：5
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