Double longitudinal spin asymmetry in neutral pion production in polarized p+p collisions at √s=200 GeV at PHENIX

被引：0
|
作者：
Boyle, Kieran [1 ]
机构：
[1] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA
来源：
Proceedings of the 17th International Spin Physics Symposium | 2007年 / 915卷
关键词：
proton structure; proton spin;
D O I：
暂无
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A major goal of the RHIC spin program is to measure Delta g, the gluon contribution to the proton's spin. Measurements by PHENIX of the double longitudinal spin asymmetry, ALL, of the neutral pion production at mid-rapidity in polarized proton collisions have been shown to constrain Delta g. Results from the 2005 RHIC run, as well as high PT data from the 2006 RHIC run, are presented. The results disfavor maximal positive and negative values of Delta g. A measurement of azimuthally independent double transverse spin asymmetry, A(TT), is also presented.
引用
收藏
页码：335 / 338
页数：4
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