Internal-target polarized Drell-Yan Experiment at RHIC

被引：2
|
作者：
Goto, Yuji [1 ]
机构：
[1] RIKEN, Nishina Ctr Accelerator Based Sci, Wako, Saitama 3510198, Japan
来源：
19TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM (SPIN2010), PT 2 | 2011年 / 295卷
关键词：
FINAL-STATE INTERACTIONS; SINGLE-SPIN ASYMMETRIES; DEEP-INELASTIC SCATTERING; PARTON DISTRIBUTIONS; GAUGE;
D O I：
10.1088/1742-6596/295/1/012166
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 physics motivations and experimental considerations for an internal-target polarized Drell-Yam dimuon experiment at RHIC. Dimuons from the Drell-Yan process are detected using a spectrometer based on the existing Fermilab-E906/SeaQuest spectrometer. The primary goal of the proposed experiment is to extract the Sivers parton distribution function in the valence-quark region from the measurement of the single transverse-spin asymmetry. The sensitivity of the proposed internal-target experiment will provide a stringent test of the QCD prediction that the Sivers function in the Drell-Yan process has an opposite sign with respect to that in deep-inelastic scattering. Results of some initial studies of the expected sensitivity are shown.
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页数：5
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