Scalar Representations and Minimal Flavor Violation

Details Scalar Representations and Minimal Flavor Violation Scalar Representations and Minimal Flavor Violation

2009-11-11

arxiv.org/abs/0911.2225v2

JHEP 1009:073,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 2 figures V2: Lepton MFV protection of baryon number discussed

Scientific paper

10.1007/JHEP01(2010)073

We discuss the representations that new scalar degrees of freedom (beyond those in the minimal standard model) can have if they couple to quarks in a way that is consistent with minimal flavor violation. If the new scalars are singlets under the flavor group then they must be color singlets or color octets. In this paper we discuss the allowed representations and renormalizable couplings when the new scalars also transform under the flavor group. We find that color \bar{3} and 6 representations are also allowed. We focus on the cases where the new scalars can have renormalizable Yukawa couplings to the quarks without factors of the quark Yukawa matrices. The renormalizable couplings in the models we introduce automatically conserve baryon number.

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