Single transverse-spin asymmetries in Drell-Yan processes

被引:2
|
作者
Re Calegari, Gabriele [1 ]
Ratcliffe, Philip G. [1 ,2 ]
机构
[1] Univ Como, Dipartimento Sci & Alta Tecnol, I-22100 Como, Italy
[2] Ist Nazl Fis Nucl Sez Milano Bicocca, I-20126 Milan, Italy
来源
EUROPEAN PHYSICAL JOURNAL C | 2014年 / 74卷 / 03期
关键词
GAUGE-INVARIANCE;
D O I
10.1140/epjc/s10052-014-2769-7
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The asymmetry in the angular distribution of Drell-Yan dilepton pairs in collisions where just one nucleon is transversely polarised has been examined in the literature with a variety of results, differing mainly by factors of 2. We re-evaluate the asymmetry via twist-3 contributions in collinear factorisation. In order to allow complete and in-depth comparison with existing calculations, we supply all calculational details.
引用
收藏
页码:1 / 10
页数:10
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