Research on parton fragmentation functions of protons

doi:10.3969/j.issn.1000-5641.2019.02.011

Abstract

Abstract: Parton distribution functions and fragmentation functions are fundamental to analyzing high energy experiments.The relationship between the proton valence quark distribution function q(x) and fragmentation function D(x) is analyzed. We find that the simple function D(x)=(1/6)q(x) for a valence quark is a good approximation to describe the available data. We set up a group of new parameterizations of fragmentation functions for protons. Differential cross section data were calculated and compared with recent research. We hope that our work can diminish uncertainties when fitting parton fragmentation functions of protons.

Key words: distribution function, fragmentation function, structure function, annihilation

CLC Number:

O413.4

LI Pei-yu, RUAN Jian-hong. Research on parton fragmentation functions of protons[J]. Journal of East China Normal University(Natural Sc, 2019, 2019(2): 106-115.

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