Quark mixing in an S3 symmetric model with two Higgs doublets

Quark mixing in an S3 symmetric model with two Higgs doublets We construct a model where the smallness of the masses of first quark generations implies the near block diagonal nature of the Cabibbo-Kobayashi-Maskawa matrix and vice versa. For this setup, we rely on a two Higgs-doublet model structure with an S3 symmetry. We show that an SM-like Higgs emerges naturally from such a construction. Moreover, the ratio of two VEVs, tanβ, can be precisely determined from the requirement of the near masslessness of the up- and down-quarks. The flavor changing neutral current structure that arises from our model is also very predictive. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review D American Physical Society (APS)

Quark mixing in an S3 symmetric model with two Higgs doublets

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Quark mixing in an S3 symmetric model with two Higgs doublets

Abstract

We construct a model where the smallness of the masses of first quark generations implies the near block diagonal nature of the Cabibbo-Kobayashi-Maskawa matrix and vice versa. For this setup, we rely on a two Higgs-doublet model structure with an S3 symmetry. We show that an SM-like Higgs emerges naturally from such a construction. Moreover, the ratio of two VEVs, tanβ, can be precisely determined from the requirement of the near masslessness of the up- and down-quarks. The flavor changing neutral current structure that arises from our model is also very predictive.
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Publisher
The American Physical Society
Copyright
Copyright © © 2017 American Physical Society
ISSN
1550-7998
eISSN
1550-2368
D.O.I.
10.1103/PhysRevD.96.031701
Publisher site
See Article on Publisher Site

Abstract

We construct a model where the smallness of the masses of first quark generations implies the near block diagonal nature of the Cabibbo-Kobayashi-Maskawa matrix and vice versa. For this setup, we rely on a two Higgs-doublet model structure with an S3 symmetry. We show that an SM-like Higgs emerges naturally from such a construction. Moreover, the ratio of two VEVs, tanβ, can be precisely determined from the requirement of the near masslessness of the up- and down-quarks. The flavor changing neutral current structure that arises from our model is also very predictive.

Journal

Physical Review DAmerican Physical Society (APS)

Published: Aug 1, 2017

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