ALT in the nucleon-nucleon polarized Drell-Yan process

被引：1

作者：

Kanazawa, Y ^{[1
]}

Koike, Y

Nishiyama, N

机构：

[1] Niigata Univ, Grad Sch Sci & Technol, Nigata 9502181, Japan

[2] Niigata Univ, Dept Phys, Niigata 9502181, Japan

来源：

NUCLEAR PHYSICS A | 2000年 / 670卷

关键词：

D O I：

10.1016/S0375-9474(00)00075-0

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 a leading order (LO) estimate for the longitidinal-transverse spin asymmetry (A(LT)) in the nucleon-nucleon polarized Drell-Yan process at RHIC and HERA-(N) over right arrow energies in comparison with A(LL) and A(TT). A(LT) receives contribution from g(1), the transversity distribution hi, and the twist-3 distributions g(T) and h(L). For the twist-3 contribution we use the lag model prediction evolved to a high energy scale by the large-iii, evolution equation. We found that A(LT) (normalized by the asymmetry in the parton level) is much smaller than the corresponding A(TT) Twist-3 contribution given by the bag model turned out to be negligible.

引用

页码：84C / 87C

页数：4

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