Absorption of photons and fermions by black holes in four dimensions

Steven S. Gubser

Research output: Contribution to journalArticlepeer-review

77 Scopus citations


The absorption of photons and fermions into four-dimensional black holes is described by equations which in certain cases can be analyzed using dyadic index techniques. The resulting absorption cross sections for near-external black holes have a form at low energies suggestive of the effective string model. A coupling to the effective string is proposed for spin-0 and spin-[Formula presented][Formula presented] fields of pure [Formula presented] supergravity which respects the unbroken supersymmetry of extreme black holes and correctly predicts dilaton, axion, and fermion cross sections up to an overall normalization.

Original languageAmerican English
Pages (from-to)7854-7868
Number of pages15
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number12
StatePublished - 1997

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


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