Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-09-10
JHEP 1011:067,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
24 pages + appendices; v2) Refs. added and numerical examples improved. Results unchanged; v3) small typos in appendix B corre
Scientific paper
10.1007/JHEP11(2010)067
We study the possibility of gauging the Standard Model flavor group. Anomaly cancellation leads to the addition of fermions whose mass is inversely proportional to the known fermion masses. In this case all flavor violating effects turn out to be controlled roughly by the Standard Model Yukawa, suppressing transitions for the light generations. Due to the inverted hierarchy the scale of new gauge flavor bosons could be as low as the electroweak scale without violating any existing bound but accessible at the Tevatron and the LHC. The mechanism of flavor protection potentially provides an alternative to Minimal Flavor Violation, with flavor violating effects suppressed by hierarchy of scales rather than couplings.
Grinstein Benjamin
Redi Michele
Villadoro Giovanni
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