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arXiv · 0712.2787

Lifetime and decay of unstable particles in strong gravitational fields

Douglas Fregolente·Alberto Saa
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Abstract

We consider here the decay of unstable particles in geodesic circular motion around compact objects. For the neutron, in particular, strong and weak decay are calculated by means of a semiclassical approach. Noticeable effects are expected to occur as one approaches the photonic circular orbit of realistic black-holes. We argue that, in such a limit,the quasi-thermal spectrum inherent to extremely relativistic observers in circular motion plays a role similar to the Unruh radiation for uniformly accelerated observers.

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Douglas Fregolente, Alberto Saa. 2008-04-21. Lifetime and decay of unstable particles in strong gravitational fields. https://doi.org/10.1103/physrevd.77.103010

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