Self-similarity based model of double parton distribution functions at LHC

National Conference on Contemporary Issues in High Energy Physics and Cosmology

Jahan, Akbari^1 ; Choudhury, D.K.^1

Department of Physics, Gauhati University, Guwahati 781014, India^1

关键词: Parton distribution functions;    Self-similarities;    Theoretical approach;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/481/1/012025/pdf
DOI  :  10.1088/1742-6596/481/1/012025

来源: IOP

【 摘 要 】

The notion of self-similarity, pursued earlier for small x physics at HERA, is used to construct a model for double parton distribution functions (dPDFs) at small x1and x2, the longitudinal fractional momenta of two partons. A necessary input to such a theoretical approach is the parton distribution functions (PDFs). In this model, the most general form of dPDF is found to have total thirteen parameters to be fitted from LHC data. We show that the constructed dPDF does not factorize into two single PDFs in conformity with QCD expectation and it vanishes at the kinematic boundary.