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RK(*) with leptoquarks and the origin of Yukawa couplings

RK(*) with leptoquarks and the origin of Yukawa couplings
RK(*) with leptoquarks and the origin of Yukawa couplings

We construct a model where the Yukawa couplings of the Standard Model (SM) fermions arise from the breaking of a Z2 symmetry and through mixing with a fourth family of vector-like fermions. By adding a scalar leptoquark, which is an electroweak triplet and odd under the Z2 symmetry, we obtain an explanation for RK(*) that is linked to the origin of the Yukawa couplings. The coupling of SM fermions to the leptoquark is mediated by the fourth family fermions, and is predicted to be related to CKM entries and mass ratios of SM fermions.

Beyond Standard Model, Quark Masses and SM Parameters
1126-6708
de Medeiros Varzielas, Ivo
9e2b1443-1449-4687-8d03-2f67275730c0
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
de Medeiros Varzielas, Ivo
9e2b1443-1449-4687-8d03-2f67275730c0
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538

de Medeiros Varzielas, Ivo and King, Stephen F. (2018) RK(*) with leptoquarks and the origin of Yukawa couplings. Journal of High Energy Physics, 2018 (11), [100]. (doi:10.1007/JHEP11(2018)100).

Record type: Article

Abstract

We construct a model where the Yukawa couplings of the Standard Model (SM) fermions arise from the breaking of a Z2 symmetry and through mixing with a fourth family of vector-like fermions. By adding a scalar leptoquark, which is an electroweak triplet and odd under the Z2 symmetry, we obtain an explanation for RK(*) that is linked to the origin of the Yukawa couplings. The coupling of SM fermions to the leptoquark is mediated by the fourth family fermions, and is predicted to be related to CKM entries and mass ratios of SM fermions.

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Accepted/In Press date: 5 November 2018
e-pub ahead of print date: 16 November 2018
Published date: November 2018
Keywords: Beyond Standard Model, Quark Masses and SM Parameters

Identifiers

Local EPrints ID: 426625
URI: http://eprints.soton.ac.uk/id/eprint/426625
ISSN: 1126-6708
PURE UUID: bafbca2b-5bea-42c4-9b98-6281b9c0d192

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Date deposited: 06 Dec 2018 17:30
Last modified: 14 Sep 2021 16:45

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