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Gluon fragmentation into S-wave heavy quarkonium by Nejad, S. Mohammad Moosavi; Mahdi, Delpasand is a scholarly article available to read on EtoBox.

What is Gluon fragmentation into S-wave heavy quarkonium about?

Fragmentation is the dominant production mechanism for heavy hadronic bound states with large transverse momentum. We numerically calculate the initial $g\rightarrow H(Q\bar{Q})$ fragmentation functions (FFs) using the nonrelativistic QCD factorization approach. Our analytical expression of FFs depends on both the momentum fraction $z$ and the transverse momentum of the gluon, and contains most of the kinematical and dynamical properties of the process. Specifically, using the perturbative QCD we present the FF for a gluon to split into $S$-wave charmonium meson $H_c$ to leading order in the QCD coupling constant.

Author

Nejad, S. Mohammad Moosavi; Mahdi, Delpasand

Published

2014

Language

EN