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Measurement of transverse single-spin asymmetries for dijet production in proton-proton collisions at root s=200 GeV

文献类型:期刊论文

作者Abelev, B. I.; Aggarwal, M. M.; Ahammed, Z.; Anderson, B. D.; Arkhipkin, D.; Averichev, G. S.; Bai, Y.; Balewski, J.; Barannikova, O.; Barnby, L. S.
刊名PHYSICAL REVIEW LETTERS
出版日期2007-10-05
卷号99页码:6
ISSN号0031-9007
DOI10.1103/PhysRevLett.99.142003
英文摘要We report the first measurement of the opening angle distribution between pairs of jets produced in high-energy collisions of transversely polarized protons. The measurement probes (Sivers) correlations between the transverse spin orientation of a proton and the transverse momentum directions of its partons. With both beams polarized, the wide pseudorapidity (-1 <=eta <=+2) coverage for jets permits separation of Sivers functions for the valence and sea regions. The resulting asymmetries are all consistent with zero and considerably smaller than Sivers effects observed in semi-inclusive deep inelastic scattering. We discuss theoretical attempts to reconcile the new results with the sizable transverse spin effects seen in semi-inclusive deep inelastic scattering and forward hadron production in pp collisions.
WOS关键词DEEP-INELASTIC SCATTERING ; ELECTROMAGNETIC CALORIMETER ; STATE INTERACTIONS ; HARD-SCATTERING ; DRELL-YAN
WOS研究方向Physics
语种英语
WOS记录号WOS:000249974000015
出版者AMER PHYSICAL SOC
源URL[http://119.78.100.186/handle/113462/27844]  
专题中国科学院近代物理研究所
通讯作者Abelev, B. I.
作者单位1.Univ Illinois, Chicago, IL 60607 USA
2.Argonne Natl Lab, Argonne, IL 60439 USA
3.Univ Birmingham, Birmingham, W Midlands, England
4.Brookhaven Natl Lab, Upton, NY 11973 USA
5.CALTECH, Pasadena, CA 91125 USA
6.Univ Calif Davis, Davis, CA 95616 USA
7.Univ Calif Los Angeles, Los Angeles, CA 90095 USA
8.Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
9.Creighton Univ, Omaha, NE 68178 USA
10.Acad Sci Czech Republic, Inst Phys Nucl, Prague 25068, Czech Republic
推荐引用方式
GB/T 7714
Abelev, B. I.,Aggarwal, M. M.,Ahammed, Z.,et al. Measurement of transverse single-spin asymmetries for dijet production in proton-proton collisions at root s=200 GeV[J]. PHYSICAL REVIEW LETTERS,2007,99:6.
APA Abelev, B. I..,Aggarwal, M. M..,Ahammed, Z..,Anderson, B. D..,Arkhipkin, D..,...&Zuo, J. X..(2007).Measurement of transverse single-spin asymmetries for dijet production in proton-proton collisions at root s=200 GeV.PHYSICAL REVIEW LETTERS,99,6.
MLA Abelev, B. I.,et al."Measurement of transverse single-spin asymmetries for dijet production in proton-proton collisions at root s=200 GeV".PHYSICAL REVIEW LETTERS 99(2007):6.

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来源:近代物理研究所

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