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Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/32462

Title: Parton distributions functions of pion, kaon and eta pseudoscalar mesons in the NJL model
Authors: Davidson, R. M.
Ruiz Arriola, Enrique
Issue Date: 2002
Abstract: Parton distributions of pseudoscalar π,K and η mesons obtained within the NJL model using the Pauli–Villars regularization method are analyzed in terms of LO and NLO evolution, and the valence sea quark and gluon parton distributions for the pion are obtained at Q2 = 4GeV 2 and compared to existing parametrizations at that scale. Surprisingly, the NLO order effects turn out to be small compared to the LO ones. The valence distributions are in good agreement with experimental analyses, but the gluon and sea distributions come out to be softer in the high-x region and harder in the low-x region than the experimental analyses suggest.
Sponsorship: Support from DGES (Spain) Project PB98-1367 and by the Junta de Andalucía is acknowledged. R.M.D. is supported in part by the U.S. Department of Energy Grant DE-FG02-88ER40448.
Publisher: Jagiellonian University
Keywords: Jona-lasinio model
Quark distributions
Wave functions
Lattice QCD
Nucleon
Nambu
Regularization
Constrains
Scattering
Operators
URI: http://hdl.handle.net/10481/32462
ISSN: 0587-4254
Rights : Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Citation: Davidson, R.M.; Ruiz Arriola, E. Parton distributions functions of pion, kaon and eta pseudoscalar mesons in the NJL model. Acta Physica Polonica B, 33(7): 1791-1808 (2002). [http://hdl.handle.net/10481/32462]
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