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arXiv · 2201.01963

Anomalous enhancement of dilepton production as a precursor of color superconductivity

Toru Nishimura·Masakiyo Kitazawa·Teiji Kunihiro
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Abstract

We compute the modification of the photon self-energy due to dynamical diquark fluctuations developed near the critical temperature of the color superconductivity through the Aslamasov-Larkin, Maki-Thompson and density of states terms, which are responsible for the paraconductivity in metals at vanishing energy and momentum. It is shown that the rate has a significant enhancement at low invariant-mass region over a rather wide range of temperature in the normal phase. This enhancement is worth exploration in the relativistic heavy-ion collisions, which may thereby reveal the significance of the diquark fluctuations in dense quark matter.

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Toru Nishimura, Masakiyo Kitazawa, Teiji Kunihiro. 2022-01-06. Anomalous enhancement of dilepton production as a precursor of color superconductivity. https://arxiv.org/abs/2201.01963

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