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

被引：7

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.

引用

页数：5

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