Little Randall-Sundrum models: epsilon_K strikes again
High Energy Physics - Phenomenology
2010-05-27 v1
Abstract
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 epsilon_K can, depending on the value of the ultra-violet 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 Lambda_{UV}>several 10^3 TeV is derived, below which vast corrections to epsilon_K are generically unavoidable. Implications for non-standard Z->bb couplings are briefly discussed.
Cite
@article{arxiv.0811.3678,
title = {Little Randall-Sundrum models: epsilon_K strikes again},
author = {M. Bauer and S. Casagrande and L. Gruender and U. Haisch and M. Neubert},
journal= {arXiv preprint arXiv:0811.3678},
year = {2010}
}
Comments
11 pages, 3 figures