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Dilepton from Disoriented Chiral Condensates

V. Koch·J. Randrup·X. N. Wang·Y. Kluger
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Abstract

Disoriented chiral condensates are manifested as long wavelength pionic oscillations and their interaction with the thermal environment can be a significant source of dileptons. We calculate the yield of such dilepton production within the linear sigma model and illustrate the basic features of the dilepton spectrum in a schematic model. We find that the dilepton yield with invariant mass near and below $2m_π$ due to the soft pion modes can be up to two orders of magnitude larger than the corresponding equilibrium yield. We conclude with a discussion on how this enhancement can be detected by present dilepton experiments.

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V. Koch, J. Randrup, X. N. Wang, Y. Kluger. 1997-12-17. Dilepton from Disoriented Chiral Condensates. https://doi.org/10.1016/s0375-9474(98)00362-5

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