Unpolarized dihadron fragmentation functions in nonlocal chiral quark model

Dong Jing Yang, Fu Jiun Jiang, Chian De Li, Chung Wen Kao*, Seung il Nam

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We have calculated the unpolarized dihadron fragmentation functions (uDiFFs) of pions and kaons using the nonlocal chiral-quark model (NLChQM) and evolved our results to the transferred momentum scale Q2=4GeV2 by the QCD evolution equations. These uDiFFs have also been computed in the Nambu–Jona-Lasinio-jet (NJL-jet) model for the sake of comparison. We find that there is substantial difference between the results of these two models. Furthermore, the DiFFs of u→π+π and g→π+π at Q2=109GeV2 in these two models are presented in comparison with the parametrizations fitted by the Monte Carlo event generator JETSET.

Original languageEnglish
Pages (from-to)248-259
Number of pages12
JournalChinese Journal of Physics
Publication statusPublished - 2021 Jun


  • 11.10.Hi
  • 12.38.Lg
  • 12.39.Fe
  • 13.87.Fh
  • 14.40.-n
  • DGLAP evolution
  • Flavor SU(3) symmetry breaking
  • Kaon and pion fragmentation
  • Nonlocal chiral-quark model
  • Quark-jet

ASJC Scopus subject areas

  • General Physics and Astronomy


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