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 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.
Cite
@article{arxiv.hep-ph/0104248,
title = {Gravitational couplings of charged leptons in a medium},
author = {Indrajit Mitra and Jose F. Nieves and Palash B. Pal},
journal= {arXiv preprint arXiv:hep-ph/0104248},
year = {2009}
}
Comments
Latex, axodraw, 39 pages. Added a few stylistic corrections and clarifying statements in the treatment of the photon tadpole diagram