Pion structure function in nuclear medium

Abstract

We study the pion structure function in nuclear medium using the Nambu and Jona-Lasinio model, and its implication for the nuclear pion enhancement of the sea quark distribution in nuclei. By using the operator product expansion, medium effect of the nuclear matter is incorporated in calculations of the twist-2 operators. We find density dependence of the pion structure function is rather weak around the nuclear matter density. We also discuss how the medium modification of the pion structure affects the sea quark enhancement in the nucleus.

16 pages (LaTeX), 5 figures are available as uuencoded PS files upon request

References in corpus (5)

• QCD Phenomenology based on a Chiral Effective Lagrangian
• Pion Structure Function in the Nambu and Jona-Lasinio model
• Nucleon Structure Functions from Relativistic Constituent Quarks
• Meson Structure in Deep Inelastic Scattering
• Diquark Corrleations in the nucleon structure function

Cited by in corpus (8)

• Transverse Polarisation of Quarks in Hadrons
• Chiral Constituent quarks and their role in quark distribution functions of nucleon and pion
• Pion structure in the nuclear medium
• In-Medium Pion Valence Distributions in a Light-Front Model
• Exclusive J/psi and Upsilon photoproduction and the low x gluon
• Valence-quark distributions of pions and kaons in a nuclear medium
• Pions valence quark distributions in asymmetric nuclear matter at finite temperature
• Does nuclear medium affect the transverse momentum-dependent parton distributions of valence quark of pions?