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Type: Conference paper
Title: Kaon fragmentation function from NJL-jet model
Author: Matevosyan, H.
Thomas, A.
Bentz, W.
Citation: Proceedings of Achievements and New Directions in Subatomic Physics: Festchrift in Honor of Tony Thomas 60th Birthday, held in Adelaide, South Australia, 15-19 February 2010 / W. Melnitchouk (ed.): pp.116-121
Publisher: Springer New York LLC
Publisher Place: United States
Issue Date: 2010
Series/Report no.: AIP Conference Proceedings ; 1261
ISBN: 9780735408111
ISSN: 0094-243X
Conference Name: Achievements and New Directions in Subatomic Physics (2010 : Adelaide, South Australia)
Editor: Melnitchouk, W.
Statement of
Hrayr H. Matevosyan, Anthony W. Thomas, and Wolfgang Bentz
Abstract: The NJL-jet model provides a sound framework for calculating the fragmentation functions in an effective chiral quark theory, where the momentum and isospin sum rules are satisfied without the introduction of ad hoc parameters [1]. Earlier studies of the pion fragmentation functions using the Nambu-Jona-Lasinio (NJL) model within this framework showed good qualitative agreement with the empirical parameterizations. Here we extend the NJL-jet model by including the strange quark. The corrections to the pion fragmentation function and corresponding kaon fragmentation functions are calculated using the elementary quark to quark-meson fragmentation functions from NJL. The results for the kaon fragmentation function exhibit a qualitative agreement with the empirical parameterizations, while the unfavored strange quark fragmentation to pions is shown to be of the same order of magnitude as the unfavored light quark's. The results of these studies are expected to provide important guidance for the analysis of a large variety of semi-inclusive data. © 2010 American Institute of Physics.
Rights: ©2010 American Institute of Physics
DOI: 10.1063/1.3479328
Grant ID: ARC
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