SINGLE SPIN ASYMMETRY FOR P-UP-ARROW-P-]PI-X IN PERTURBATIVE QCD

被引：247

作者：

ANSELMINO, M

BOGLIONE, M

MURGIA, F

机构：

[1] IST NAZL FIS NUCL,I-10125 TURIN,ITALY

[2] IST NAZL FIS NUCL,I-09127 CAGLIARI,ITALY

来源：

PHYSICS LETTERS B | 1995年 / 362卷 / 1-4期

关键词：

D O I：

10.1016/0370-2693(95)01168-P

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Within the QCD-improved parton model and assuming the factorization theorem to hold in the helicity basis and for higher twist contributions, we show how nonzero single spin asymmetries in hadron-hadron high energy and moderately large p(T) inclusive processes can be obtained, even in massless perturbative QCD, provided the quark intrinsic motion is taken into account. A simple model is constructed which reproduces the main features of the data on the single spin asymmetry observed in inclusive pion production in p p collisions.

引用

页码：164 / 172

页数：9

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