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Abstract: A detailed phenomenological analysis of neutral kaon mixing in -littleRandall-Sundrum- models is presented. It is shown that the constraints arisingfrom the CP-violating quantity epsilon K can, depending on the value of theultra-violet cutoff, be even stronger than in the original Randall-Sundrumscenario addressing the hierarchy problem up to the Planck scale. The origin ofthe enhancement is explained, and a bound Lambda {UV}>several 10^3 TeV isderived, below which vast corrections to epsilon K are generically unavoidable.Implications for non-standard Z->bb couplings are briefly discussed.



Autor: M. Bauer, S. Casagrande, L. Gruender, U. Haisch, M. Neubert Johannes Gutenberg University Mainz

Fuente: https://arxiv.org/







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