-Meson in Nuclear Matter

φ-meson in Nuclear Matter

φ-meson mass in nuclear matter (m∗φ) is investigated using an effective Lagrangian of φ interacting with octet baryons. m∗φ decreases by a few % in nuclear matter due to the current conservation and effective nucleon/hyperon masses. Its implication to the p-A and A-A collisions are briefly discussed. Submitted to Prog. Theor. Phys.

Meson mixing amplitudes in asymmetric nuclear matter

Using a purely hadronic model, we study the charge-symmetry-breaking ρ-ω, σ-δ, σ-ρ and δ-ω mixing amplitudes in isospin asymmetric nuclear matter. The basic assumption of the model is that the mixing amplitude is generated by nucleon and anti-nucleon loops and hence driven entirely by the difference between proton and neutron Fermi momenta and the proton-neutron mass difference. We find that th...

Comment on : “ Meson Masses in Nuclear Matter ”

From Meson-nucleon Scattering to Vector Mesons in Nuclear Matter

We employ meson-nucleon scattering data to deduce the properties of the low-mass vector mesons in nuclear matter, and present results for the ρ and ω in-medium spectral functions. The corresponding thermal emission rate for lepton pairs is also discussed.

Hot Nuclear Matter in the Quark Meson Coupling Model

We study here hot nuclear matter in the quark meson coupling (QMC) model which incorporates explicitly quark degrees of freedom, with quarks coupled to scalar and vector mesons. The equation of state of nuclear matter including the composite nature of the nucleons is calculated at finite temperatures. The calculations are done taking into account the medium–dependent bag constant. Nucleon prope...