Lifetime and decay of unstable particles in strong gravitational fields

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dc.creatorFregolente, Douglas
dc.creatorSaa, Alberto
dc.date2007-12-17
dc.date2008-04-21
dc.date.accessioned2026-07-07T11:39:28Z
dc.date.available2026-07-07T11:39:28Z
dc.descriptionWe 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.
dc.description6 pages, 4 figures. Final version to appear in PRD
dc.identifierhttps://arxiv.org/abs/0712.2787
dc.identifierhttp://arxiv.org/abs/0712.2787
dc.identifierPhys.Rev.D77:103010,2008
dc.identifierdoi:10.1103/PhysRevD.77.103010
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199931
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleLifetime and decay of unstable particles in strong gravitational fields
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