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High Energy Physics - Phenomenology

arXiv:1304.0525 (hep-ph)
[Submitted on 2 Apr 2013]

Title:The quark-jet contribution to the fragmentation functions for the pion and kaon with the nonlocal interactions

Authors:Dong Jing Yang, Fu Jiun Jiang, Chung Wen Kao, Seung il Nam
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Abstract:We investigate the unpolarized pion and kaon fragmentation functions using the nonlocal chiral-quark model. In this model the interactions between the quarks and pseudoscalar mesons is manifested nonlocally. In addition, the explicit flavor SU(3) symmetry breaking effect is taken into account in terms of the current quark masses. The results of our model are evaluated to higher $Q^2$ value $Q^2=4\,\mathrm{GeV}^2$ by the DGLAP evolution. Then we compare them with the empirical parametrizations. We find that our results are in relatively good agreement with the empirical parametrizations and the other theoretical estimations.
Comments: 12pages, 7 figures
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex); Nuclear Theory (nucl-th)
Report number: KIAS-P 13014, CYCU-HEP-13-03
Cite as: arXiv:1304.0525 [hep-ph]
  (or arXiv:1304.0525v1 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1304.0525
Related DOI: https://doi.org/10.1103/PhysRevD.87.094007

Submission history

From: Chung Wen Kao [view email]
[v1] Tue, 2 Apr 2013 03:54:18 UTC (568 KB)
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