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\(\rho\)-meson spectral function in hot asymmetric nuclear matter

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Abstract.

The \(\rho\)-meson spectral function in hot and dense asymmetric nuclear matter (number densities of proton and neutron different) is evaluated in an effective chiral SU(3) model within the mean field approximation (MFA). The dependence of the vector meson masses on density and temperature, their variation with the asymmetry parameter, the form of the spectral function when the \( p \longleftrightarrow n\) symmetry is broken are studied. One can observe a clear splitting of the longitudinal and the transverse modes among the \(\rho\) isospin multiplets. The role of a running tensor coupling on the spectral function is also studied.

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Authors and Affiliations

  1. Department of Physics, Providence Women’s College, 673009, Calicut, Kerala, India

    P. C. Raje Bhageerathi

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  1. P. C. Raje Bhageerathi
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Correspondence to P. C. Raje Bhageerathi.

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Communicated by R. Rapp

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This manuscript has no associated data or the data will not be deposited. [Author's comment: The data generated during this particular study are all contained in this article.]

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Raje Bhageerathi, P.C. \(\rho\)-meson spectral function in hot asymmetric nuclear matter. Eur. Phys. J. A 55, 73 (2019). https://doi.org/10.1140/epja/i2019-12745-y

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  • DOI: https://doi.org/10.1140/epja/i2019-12745-y

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