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Title: Black hole portal into hidden valleys

Journal Article · · Physical Review. D, Particles Fields
;  [1]
  1. Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, New York, 10003 (United States)

Superradiant instability turns rotating astrophysical black holes into unique probes of light axions. We consider what happens when a light axion is coupled to a strongly coupled hidden gauge sector. In this case superradiance results in an adiabatic increase of a hidden sector CP-violating {theta} parameter in a near horizon region. This may trigger a first order phase transition in the gauge sector. As a result a significant fraction of a black hole mass is released as a cloud of hidden mesons and can be later converted into electromagnetic radiation. This results in a violent electromagnetic burst. The characteristic frequency of such bursts may range from {approx}100 eV to {approx}100 MeV.

OSTI ID:
21502653
Journal Information:
Physical Review. D, Particles Fields, Vol. 83, Issue 10; Other Information: DOI: 10.1103/PhysRevD.83.106002; (c) 2011 American Institute of Physics; ISSN 0556-2821
Country of Publication:
United States
Language:
English