Quark Fragmentation to Pions in an Effective Chiral Theory
Department of Physics, Tokai University,
2 Department of Physics, University of Washington, Seattle, WA 98195-1560, USA
3 School of Chemistry and Physics, University of Adelaide, Adelaide, SA 5005, Australia
4 Radiation Laboratory, Nishina Accelerator Research Center, RIKEN, Wako, Saitama 351-0198, Japan
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A description of fragmentation functions which satisfy the momentum and isospin sum rules is presented in an eﬀective chiral quark theory of QCD. We concentrate on the pion fragmentation function, taking into account cascade-like processes in a generalized jet-model approach. Numerical results obtained in this NJL-jet model are presented and compared to empirical parametrizations.
© Owned by the authors, published by EDP Sciences, 2010