TY - JOUR
T1 - Quark-jet contribution to the fragmentation functions for the pion and kaon with the nonlocal interactions
AU - Yang, Dong Jing
AU - Jiang, Fu Jiun
AU - Kao, Chung Wen
AU - Nam, Seung Il
PY - 2013/5/9
Y1 - 2013/5/9
N2 - 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 Q2 value Q2=4 GeV2 by the QCD 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.
AB - 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 Q2 value Q2=4 GeV2 by the QCD 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.
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U2 - 10.1103/PhysRevD.87.094007
DO - 10.1103/PhysRevD.87.094007
M3 - Article
AN - SCOPUS:84877958563
SN - 1550-7998
VL - 87
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 9
M1 - 094007
ER -