Journal of East China Normal University(Natural Sc ›› 2009, Vol. 2009 ›› Issue (1): 128-136.

• Article • Previous Articles     Next Articles

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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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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