Measurement of single transverse-spin asymmetry in forward production of photons and neutrons in pp collisions at √s=200 GeV

被引：0

作者：

Bazilevsky, A ^{[1
]}

Bland, L ^{[1
]}

Bogdanov, A ^{[1
]}

Bunce, G ^{[1
]}

Deshpande, A ^{[1
]}

En'yo, H ^{[1
]}

Fox, B ^{[1
]}

Fukao, Y ^{[1
]}

Goto, Y ^{[1
]}

Haggerty, J ^{[1
]}

Imai, K ^{[1
]}

Lenz, W ^{[1
]}

von Lintig, D ^{[1
]}

Liu, M ^{[1
]}

Makdisi, Y ^{[1
]}

Muto, R ^{[1
]}

Nurushev, S ^{[1
]}

Pascuzzi, E ^{[1
]}

Purschke, ML ^{[1
]}

Saito, N ^{[1
]}

Sakuma, F ^{[1
]}

Stoll, S ^{[1
]}

Tanida, K ^{[1
]}

Togawa, M ^{[1
]}

Tojo, J ^{[1
]}

Watanabe, Y ^{[1
]}

Woody, C ^{[1
]}

机构：

[1] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA

来源：

SPIN 2002 | 2003年 / 675卷

关键词：

D O I：

暂无

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：

The Relativistic Heavy Ion Collider (RHIC) at the Brookhaven National Laboratory (BNL) was commissioned for polarized proton-proton collisions at the center of mass energy roots = 200 GeV during the run in 2001-2002. We have measured the single transverse-spin asymmetry A(N) for production of photons, neutral pions, and neutrons at the very forward angle. The asymmetries for the photon and neutral pion sample were consistent with zero within the experimental uncertainties. In contrast, the neutron sample exhibited an unexpectedly large asymmetry. This large asymmetry:will be used for the non-destructive polarimeter for polarized proton beams at the collision points in the RHIC interaction region.

引用

页码：584 / 588

页数：5

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