Relativistic spectral function of nucleon in hot nuclear matter

Abstract

We present a simple calculation of the nucleon self-energy in nuclear matter at finite temperature in a relativistic framework, using the real time thermal field theory. The imaginary parts of one-loop graphs are identified with discontinuities across the unitary and the Landau cuts. We find that in general both the cuts contribute significantly to the spectral function in the region of (virtual) nucleon mass usually considered, even though the unitary cut is ignored in the literature. Also our relativistic spectral function differs from the one in non-relativistic approximation, used in some earlier calculations.

References in corpus (8)

• Hadron production in central nucleus-nucleus collisions at chemical freeze-out
• Chemical and Thermal Freeze-Out Parameters from 1 to 200 A.GeV
• Low energy analysis of pi N --> pi N
• Hadronic Spectral Functions in Nuclear Matter
• Thermodynamics of Delta resonances
• Rho properties in a hot meson gas
• Real-time propagators at finite temperature and chemical potential
• Delta(1232) and Nucleon Spectral Functions in Hot Hadronic Matter

Cited by in corpus (5)

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• Electrical conductivity of hadronic matter from different possible mesonic and baryonic thermal fluctuations
• Heating triangle singularities in heavy ion collisions
• $\Delta$ self-energy at finite temperature and density and the $\pi N$ cross-section
• A comparative analysis of in-medium spectral functions for $N(940)$ and $N^{\ast }(1535)$ in real-time thermal field theory