Bound on minimal universal extra dimensions from B̄→Xsγ

Ulrich Haisch, Andreas Weiler

Research output: Contribution to journalArticlepeer-review

97 Scopus citations

Abstract

We reexamine the constraints on universal extra dimensional models arising from the inclusive radiative B̄→Xsγ decay. We take into account the leading order contributions due to the exchange of Kaluza-Klein modes as well as the available next-to-next-to-leading order corrections to the B̄→Xsγ branching ratio in the standard model. For the case of one large flat universal extra dimension, we obtain a lower bound on the inverse compactification radius 1/R>600GeV at 95% confidence level that is independent of the Higgs mass.

Original languageEnglish
Article number034014
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume76
Issue number3
DOIs
StatePublished - 23 Aug 2007
Externally publishedYes

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