华东师范大学学报(自然科学版) ›› 2009, Vol. 2009 ›› Issue (1): 128-136.

• 应用物理,电子学 • 上一篇    下一篇

扭度-4效应对核子极化结构函数的影响

杨东岩;阮建红
   

  1. 华东师范大学 物理系， 上海200062
  • 收稿日期:2008-06-12 修回日期:2008-07-25 出版日期:2009-01-25 发布日期:2009-01-25
  • 通讯作者: 杨东岩

Twist-4 effect in polarized structure function(Chinese)

YANG Dong-yan;RUAN Jian-hong
   

  1. Department of Physics, East China Normal University，Shanghai 200062, China
  • Received:2008-06-12 Revised:2008-07-25 Online:2009-01-25 Published:2009-01-25
  • Contact: YANG Dong-yan

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摘要： 利用扭度-4修正后的Dokshitzer-Gribov-Lipatov-Altarelli-Parisi（DGLAP）方程，结合HERMES的实验数据，计算出了领头阶情况下极化结构函数g1以及不对称性A1，讨论了扭度-4对核子自旋结构函数的影响.

关键词: 极化结构函数, 高扭度效应, 演化方程, 极化结构函数, 高扭度效应, 演化方程

Abstract: This paper calculated the proton and neutron spin structure functiong1 and the asymmetryA1 with modified DGLAP equations which considered twist-4 effect. With the HERMES experiment data, we discussed twist-4 effect in polarized structure function.

Key words: higher twist effect, evolution equation, polarized structure function, higher twist effect, evolution equation

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