Semiclassical approach to the decay of protons in circular motion under the influence of gravitational fields

@article{Fregolente2006SemiclassicalAT,
  title={Semiclassical approach to the decay of protons in circular motion under the influence of gravitational fields},
  author={Douglas Fregolente and George E. A. Matsas and Daniel A. T. Vanzella},
  journal={Physical Review D},
  year={2006},
  volume={74},
  pages={045032}
}
We investigate the possible decay of protons in geodesic circular motion around neutral compact objects. Weak and strong decay rates and the associated emitted powers are calculated using a semiclassical approach. Our results are discussed with respect to distinct ones in the literature, which consider the decay of accelerated protons in electromagnetic fields. A number of consistency checks are presented along the paper. 
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