Work

T-odd transverse momentum dependent gluon fragmentation functions in a spectator model

Year: 2024

Type: article

Abstract: We present a model calculation of the T-odd transverse momentum dependent (TMD) gluon fragmentation functions for a spin-1/2 hadron . Our model is based on the postulation that a time-like off-shell gluon can fragment into a hadron and a single spectator particle, which is considered to be on-shell. We consider the effect of the gluon exchange to calculate all necessary one-loop diagrams for the gluon-gluon correlation functions. Two out of four one-loop diagrams give sizeable contributions to the fragmentation functions. We obtain analytical expressions for the four T-odd TMD fragmentation functions of the gluon. We also provide numerical results on the z-dependence and k T -dependence of the fragmentation functions.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2024.138961

Authors: Xiupeng Xie, Zhun Lu

Institution: Southeast University

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Innovative Research Group Project of the National Natural Science Foundation of China, National Natural Science Foundation of China

Award: G91386230