Fixed scalar greybody factors in five and four dimensions

Igor R. Klebanov, Michael Krasnitz

Research output: Contribution to journalArticlepeer-review

49 Scopus citations


We perform the classical gravity calculations of the fixed scalar absorption cross sections by [Formula presented]=5 black holes with three charges and by [Formula presented] black holes with four charges. We obtain analytic results for the cases where the energy and the left- and right-moving temperatures are sufficiently low but have arbitrary ratios. In [Formula presented] the greybody factor is in perfect agreement with the recent calculation performed in the context of the effective string model for black holes. In [Formula presented] the formula for the greybody factor in terms of the energy and the temperatures differs from that in [Formula presented] only by the overall normalization. This suggests that the fixed scalar coupling to the effective string in [Formula presented] is identical to that in [Formula presented].

Original languageEnglish (US)
Pages (from-to)R3250-R3254
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number6
StatePublished - 1997

All Science Journal Classification (ASJC) codes

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


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