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arXiv · hep-ph/0104248

Gravitational couplings of charged leptons in a medium

Indrajit Mitra·Jose F. Nieves·Palash B. Pal
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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 $O(α)$ 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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Indrajit Mitra, Jose F. Nieves, Palash B. Pal. 2001-06-05. Gravitational couplings of charged leptons in a medium. https://doi.org/10.1103/physrevd.64.085004

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