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Journal article

Bound on minimal universal extra dimensions from Bbar -> X_s gamma

Abstract:
We reexamine the constraints on universal extra dimensional models arising from the inclusive radiative Bbar -> X_s gamma 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 Bbar -> X_s gamma 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 > 600 GeV at 95% confidence level that is independent of the Higgs mass.

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Publisher copy:
10.1103/PhysRevD.76.034014

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author


Journal:
Phys.Rev.D More from this journal
Volume:
76
Issue:
3
Pages:
034014
Publication date:
2007-03-06
DOI:
EISSN:
1550-2368
ISSN:
1550-7998


Keywords:
Pubs id:
pubs:177517
UUID:
uuid:524d9022-38c6-4ebd-8b8e-990250dd981e
Local pid:
pubs:177517
Source identifiers:
177517
Deposit date:
2012-12-19

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