Implication of possible observation of enhanced Bd0 --> mu+ mu- decay
High Energy Physics - Phenomenology
2013-05-15 v2
Abstract
The very rare Bd0 --> mu+ mu- decay may be the last chance for New Physics in flavor sector at the LHC, before the 13 TeV run in 2015. Partially motivated by the known tension in sin(2beta/phi_1), enhancement beyond (3-4) x 10^-10 would likely imply the effect of a fourth generation of quarks. If observed at this level, the 126 GeV boson may not be the actual Higgs boson, while the b --> d quadrangle (modulo m_t') would jump out. The 2011-2012 data is likely not sensitive to values below 3 x 10^-10, and the mode should continue to be pursued with the 13 TeV run.
Cite
@article{arxiv.1302.1471,
title = {Implication of possible observation of enhanced Bd0 --> mu+ mu- decay},
author = {Wei-Shu Hou and Masaya Kohda and Fanrong Xu},
journal= {arXiv preprint arXiv:1302.1471},
year = {2013}
}
Comments
6 pages, 9 figures; title changed, references added and updated, other minor improvements, to appear in PRD