Calculating Kaon Fragmentation Functions from NJL-Jet Model

Abstract

The Nambu--Jona-Lasinio (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. Earlier studies of the pion fragmentation functions using the NJL model within this framework showed qualitative agreement with the empirical parameterizations. Here we extend the NJL-Jet model by including the strange quark. The corrections to the pion fragmentation functions and corresponding kaon fragmentation functions are calculated using the elementary quark to quark-meson fragmentation functions from NJL. The results for the kaon fragmentation functions 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.

9 pages, 14 figures

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Cited by in corpus (28)

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• Transverse Momentum Dependent Fragmentation and Quark Distribution Functions from the NJL-jet Model
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• Parton-distribution functions for the pion and kaon in the gauge-invariant nonlocal chiral-quark model
• Precise Measurements of Beam Spin Asymmetries in Semi-Inclusive ${\pi }^0$ production
• Numerical solution of $Q^2$ evolution equations for fragmentation functions
• Dihadron Fragmentation Functions within the NJL-jet Model
• Monte Carlo Simulations of Hadronic Fragmentation Functions using NJL-Jet Model
• Studies of Azimuthal Modulations in Two Hadron Fragmentation of a Transversely Polarised Quark
• Collins Fragmentation Function within NJL-jet Model
• Calculating Dihadron Fragmentation Functions in the NJL-jet model
• Dihadron fragmentation functions in the quark-jet model: Transversely polarized quarks
• Several Topics on Transverse Momentum-Dependent Fragmentation Functions
• Predictions for Sivers single spin asymmetries in one- and two-hadron electroproduction at CLAS12 and EIC
• Fragmentation functions and parton distribution functions for the pion with the nonlocal interactions
• Fragmentation and quark distribution functions for the pion and kaon with explicit flavor-SU(3)-symmetry breaking
• Quark-Jet model for transverse momentum dependent fragmentation functions
• Monte Carlo Implementation of Polarized Hadronization
• Dihadron Fragmentation Functions from the NJL-jet model and their QCD Evolution
• The quark-jet contribution to the fragmentation functions for the pion and kaon with the nonlocal interactions
• Gluon fragmentation functions in the Nambu-Jona-Lasinio model
• Spin Orbit Correlations and the Structure of the Nucleon
• Consistency check of charged hadron multiplicities and fragmentation functions in SIDIS
• Azimuthal asymmetries from $\theta$ Vacuum
• Effects of Quark Spin Flip on the Collins Fragmentation Function in a Toy Model
• Parton distribution and fragmentation functions with massive gluons
• A Vision of Hadronic Physics