Little Randall-Sundrum models: εK strikes again

A detailed phenomenological analysis of neutral kaon mixing in "little Randall-Sundrum" models is presented. It is shown that the constraints arising from the CP-violating quantity εK can, depending on the value of the ultraviolet cutoff, be even stronger than in the original Randall-Sundr...

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Main Authors: Bauer, M, Casagrande, S, Gründer, L, Haisch, U, Neubert, M
Format: Journal article
Language:English
Published: American Physical Society 2009
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author Bauer, M
Casagrande, S
Gründer, L
Haisch, U
Neubert, M
author_facet Bauer, M
Casagrande, S
Gründer, L
Haisch, U
Neubert, M
author_sort Bauer, M
collection OXFORD
description A detailed phenomenological analysis of neutral kaon mixing in "little Randall-Sundrum" models is presented. It is shown that the constraints arising from the CP-violating quantity εK can, depending on the value of the ultraviolet cutoff, be even stronger than in the original Randall-Sundrum scenario addressing the hierarchy problem up to the Planck scale. The origin of the enhancement is explained, and a bound ΛUV>several 103TeV is derived, below which vast corrections to εK are generically unavoidable. Implications for nonstandard Z0→bb̄ couplings are briefly discussed. © 2009 The American Physical Society.
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spelling oxford-uuid:3ca36cb8-2a26-4c4e-9cad-8748deb601112022-03-26T14:14:48ZLittle Randall-Sundrum models: εK strikes againJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3ca36cb8-2a26-4c4e-9cad-8748deb60111EnglishSymplectic Elements at OxfordAmerican Physical Society2009Bauer, MCasagrande, SGründer, LHaisch, UNeubert, MA detailed phenomenological analysis of neutral kaon mixing in "little Randall-Sundrum" models is presented. It is shown that the constraints arising from the CP-violating quantity εK can, depending on the value of the ultraviolet cutoff, be even stronger than in the original Randall-Sundrum scenario addressing the hierarchy problem up to the Planck scale. The origin of the enhancement is explained, and a bound ΛUV>several 103TeV is derived, below which vast corrections to εK are generically unavoidable. Implications for nonstandard Z0→bb̄ couplings are briefly discussed. © 2009 The American Physical Society.
spellingShingle Bauer, M
Casagrande, S
Gründer, L
Haisch, U
Neubert, M
Little Randall-Sundrum models: εK strikes again
title Little Randall-Sundrum models: εK strikes again
title_full Little Randall-Sundrum models: εK strikes again
title_fullStr Little Randall-Sundrum models: εK strikes again
title_full_unstemmed Little Randall-Sundrum models: εK strikes again
title_short Little Randall-Sundrum models: εK strikes again
title_sort little randall sundrum models εk strikes again
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AT casagrandes littlerandallsundrummodelsekstrikesagain
AT grunderl littlerandallsundrummodelsekstrikesagain
AT haischu littlerandallsundrummodelsekstrikesagain
AT neubertm littlerandallsundrummodelsekstrikesagain