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Calculation of the Longitudinal Structure Function from Regge-Like Behaviour of the Gluon Distribution Function in Leading Order Approximation at Low x
作者姓名:G.R.  Boroun  B.  Rezaie
作者单位:Department of Physics, Razi University, Kermanshah 67149, Iran
基金项目:Financially supported by Razi University.
摘    要:We present the calculations of FL longitudinal structure functions from DGLAP evolution equation in leading order (LO) at low-x, assuming the Regge-like behaviour of gluon distribution at this limit. The calculated results are compared with the H1 data and QCD fit. It is shown that the obtained results are very close to the mentioned methods. The proposed simple analytical relation for EL provides a t-evolution equation for the determination of the longitudinal structure function at low-x. All the results can consistently be described within the framework of perturbative QCD, which essentially shows increases as x decreases.

关 键 词:胶子  分布函数  逼近  纵向结构
收稿时间:2006-11-22
修稿时间:2006-11-22

Calculation of the Longitudinal Structure Function from Regge-Like Behaviour of the Gluon Distribution Function in Leading Order Approximation at Low x
G.R. Boroun B. Rezaie.Calculation of the Longitudinal Structure Function from Regge-Like Behaviour of the Gluon Distribution Function in Leading Order Approximation at Low x[J].Chinese Physics Letters,2007,24(5):1187-1190.
Authors:GR Boroun  B Rezaie
Institution:Department of Physics, Razi University, Kermanshah 67149, Iran
Abstract:We present the calculations of FL longitudinal structure functions from DGLAP evolution equation in leading order (LO) at low-x, assuming the Regge-like behaviour of gluon distribution at this limit. The calculated results are compared with the H1 data and QCD fit. It is shown that the obtained results are very close to the mentioned methods. The proposed simple analytical relation for FL provides a t-evolution equation for the determination of the longitudinal structure function at low-x. All the results can consistently bedescribed within the framework of perturbative QCD, which essentially shows increases as x decreases.
Keywords:11  55  Jy  12  38  -t  14  70  Dj
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