Regge behaviour of distribution functions and 𝑡 and 𝑥-evolutions of gluon distribution function at low-𝑥

Pramana

J K Sarma1¹  U Jamil1¹ 

[1] Department of Physics, Tezpur University, Napam, Tezpur 784 028, India$$

关键词: Regge behaviour;    DGLAP evolution equations;    low-𝑥;    structure functions;    gluon distribution function.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

In this paper, 𝑡 and 𝑥-evolutions of gluon distribution function from Dokshitzer–Gribov–Lipatov–Altarelli–Parisi (DGLAP) evolution equation in leading order (LO) at low-𝑥 are presented assuming the Regge behaviour of quarks and gluons at this limit. We compare our results of gluon distribution function with MRST 2001, MRST 2004 and GRV 1998 parametrizations and show the compatibility of Regge behaviour of quark and gluon distribution functions with perturbative quantum chromodynamics (PQCD) at low-𝑥. We also discuss the limitations of Taylor series expansion method used earlier to solve DGLAP evolution equations in the Regge behaviour of distribution functions.

【 授权许可】

Unknown