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Author Ghosh, Sabyasachi ♦ Mallik, S. ♦ Sarkar, Sourav
Source arXiv.org
Content type Text
File Format PDF
Date of Submission 2009-11-18
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics
Subject Keyword High Energy Physics - Phenomenology ♦ Nuclear Theory ♦ physics:hep-ph ♦ physics:nucl-th
Abstract We analyse the structure of one-loop self-energy graphs for the rho meson in real time formulation of finite temperature field theory. We find the discontinuities of these graphs across the unitary and the Landau cuts. These contributions are identified with different sources of medium modification discussed in the literature. We also calculate numerically the imaginary and the real parts of the self-energies and construct the spectral function of the rho meson, which are compared with an earlier determination. A significant contribution arises from the unitary cut of the pi-omega loop, that was ignored so far in the literature.
Description Reference: Eur.Phys.J.C70:251-262,2010
Educational Use Research
Learning Resource Type Article


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