Gravitational couplings of charged leptons in a medium

Abstract

We calculate the leading order matter-induced corrections to the gravitational interactions of charged leptons and their antiparticles in a medium that contains electrons but not the other charged leptons, such as normal matter. The gravitational coupling, which is universal at the tree level, is found to be flavor-dependent, and also different for the corresponding antiparticles, when the corrections of $O(\alpha )$ are taken into account. General expressions are obtained for the matter-induced corrections to the gravitational mass in a generic matter background, and explicit formulas for those corrections are given in terms of the macroscopic parameters of the medium for particular conditions of the background gases.

Latex, axodraw, 39 pages. Added a few stylistic corrections and clarifying statements in the treatment of the photon tadpole diagram

References in corpus (1)

• Gravitational coupling of neutrinos in a medium

Cited by in corpus (4)

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• Leading quantum gravitational corrections to QED
• Anomalous gravitomagnetic moment and non-universality of the axial vortical effect at finite temperature
• Some aspects of particle physics in thermal background