Gravitational couplings of charged leptons in a medium

Details Gravitational couplings of charged leptons in a medium Gravitational couplings of charged leptons in a medium

2001-04-24

arxiv.org/abs/hep-ph/0104248v2

Phys.Rev. D64 (2001) 085004

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1103/PhysRevD.64.085004

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.

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