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

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      https://www.ias.ac.in/article/fulltext/pram/069/02/0167-0180

    • Keywords

       

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

    • Abstract

       

      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.

    • Author Affiliations

       

      U Jamil1 J K Sarma1

      1. Department of Physics, Tezpur University, Napam, Tezpur 784 028, India
    • Dates

       
  • Pramana – Journal of Physics | News

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