Scalar representations and minimal flavor violation
Abstract
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 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.
Additional Information
© SISSA 2010. Received: 8 December 2009. Accepted: 26 December 2009. Published online: 19 January 2010. We thank Pavel Fileviez Perez for helpful comments on baryon number violation in the models we introduce. The work of M.B.W. was supported in part by the U.S. Department of Energy contract No. DE-FG02-92ER40171. M.B.W. is grateful for the hospitality of the Perimeter Institute where his participation in this work began. The work of MP was supported in part by NSERC, Canada. Research at the Perimeter Institute is also supported in part by the Government of Canada through NSERC and by the Province of Ontario through MEDT.Additional details
- Eprint ID
- 17486
- DOI
- 10.1007/JHEP01(2010)073
- Resolver ID
- CaltechAUTHORS:20100216-112909655
- DE-FG02-92ER40171
- U.S. Department of Energy
- Natural Sciences and Engineering Research Council of Canada
- Province of Ontario through Ministry of Economic Development and Trade (MEDT)
- Created
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2010-02-17Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field
- Caltech groups
- Caltech Theory