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arXiv · 0910.1067

Radiation of an electric charge in the field of a magnetic monopole

Michael Lublinsky·Claudia Ratti·Edward Shuryak
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Abstract

We consider the radiation of photons from quarks scattering on color-magnetic monopoles in the Quark-Gluon Plasma. We consider a temperature regime $T\gsim2T_c$, where monopoles can be considered as static, rare objects embedded into matter consisting mostly of the usual "electric" quasiparticles, quarks and gluons. The calculation is performed in the classical, non-relativistic approximation and results are compared to photon emission from Coulomb scattering of quarks, known to provide a significant contribution to the photon emission rates from QGP. The present study is a first step towards understanding whether this scattering process can give a sizeable contribution to dilepton production in heavy-ion collisions. Our results are encouraging: by comparing the magnitudes of the photon emission rate for the two processes, we find a dominance in the case of quark-monopole scattering. Our results display strong sensitivity to finite densities of quarks and monopoles.

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Michael Lublinsky, Claudia Ratti, Edward Shuryak. 2009-10-06. Radiation of an electric charge in the field of a magnetic monopole. https://doi.org/10.1103/physrevd.81.014008

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