Quark-antiquark Scattering Phase Shift and Meson Spectral Function in Pion Superfluid

Abstract

We study the quark-antiquark scattering phase shift and meson spectral function in the pion superfluid described by the Nambu--Jona-Lasinio model. The meson mixing in the pion superfluid changes dramatically the full scattering phase shift and spreads strongly the spectral function of some of the collective modes.

20 pages, 9 figures. arXiv admin note: text overlap with arXiv:hep-ph/0503272, arXiv:hep-ph/0612320, arXiv:nucl-th/0702032 by other authors

References in corpus (10)

• BEC-BCS Crossover in the Nambu--Jona-Lasinio Model of QCD
• Fluctuations in the quark-meson model for QCD with isospin chemical potential
• Rho meson condensation at finite isospin chemical potential in a holographic model for QCD
• Pseudoscalar neutral mesons in hot and dense matter
• Effect of Quark Dimension Reduction on Goldstone Mode in Magnetic Field
• Meson supercurrents and the Meissner effect in the Sakai-Sugimoto model
• Enhancement of Chiral Symmetry Breaking from the Pion condensation at finite isospin chemical potential in a holographic QCD model
• Structure of Compact Stars in Pion Superfluid Phase
• Meson Mixing in Pion Superfluid
• Pion Superfluidity beyond Mean Field Approximation In Nambu--Jona-Lasinio Model

Cited by in corpus (11)

• Meson condensation
• Scrutinizing the pion condensed phase
• Intriguing aspects of meson condensation
• Pion crystals hosting topologically stable baryons
• Pion quasiparticles and QCD phase transitions at finite temperature and isospin density from holography
• Mass spectra of neutral mesons $K_0,{\pi }_0,\eta ,{\eta }^{\prime }$ at finite magnetic field, temperature and baryon chemical potential
• Pion superfluid phase transition under external magnetic field including inverse magnetic catalysis effect
• Magnetic field effect on pion superfluid
• Pion damping width and pion spectral function in hot pion gas
• Aspects of Meson Condensation
• Light mesons around critical end points in $T-{\mu }_B-{\mu }_I-eB$ space