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Low scale flavor gauge symmetries

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Abstract

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.

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Author information

Authors and Affiliations

  1. CERN, PH-TH, CH-1211, Geneva 23, Switzerland

    Benjamín Grinstein, Michele Redi & Giovanni Villadoro

  2. Physics Dept., UCSD, La Jolla, CA, 92093, U.S.A.

    Benjamín Grinstein

Authors
  1. Benjamín Grinstein
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  2. Michele Redi
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  3. Giovanni Villadoro
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Correspondence to Michele Redi.

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ArXiv ePrint:1009.2049

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Grinstein, B., Redi, M. & Villadoro, G. Low scale flavor gauge symmetries. J. High Energ. Phys. 2010, 67 (2010). https://doi.org/10.1007/JHEP11(2010)067

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