Composite flavon-Higgs models

Chung, Yi

doi:10.1103/PhysRevD.104.095011

Title: Composite flavon-Higgs models

Journal Article · Fri Nov 12 00:00:00 EST 2021 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.104.095011· OSTI ID:1830034

We consider a composite Higgs model based on theU(6)/Sp(6) coset, where an U(1) subgroup of Sp(6) is identified as the flavor symmetry. A complex scalar field s, which is a pseudo-Nambu-Goldstone boson of the broken symmetry, carries a flavor charge and plays the role of a flavon field. The U(1)F flavor symmetry is then broken by a VEV of the flavon field, which leads to a small parameter and generates the mass hierarchy between the top and bottom quarks. A light flavon below the TeV scale can be naturally introduced, which provides a fully testable model for the origin of flavor hierarchy. A light flavon also leads to substantial flavor changing neutral currents, which are strongly constrained by the flavor experiments. The direct search of additional scalar bosons can also be conducted in HL-LHC and future hadron colliders.

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Research Organization:: Univ. of California, Davis, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: SC-0009999; SC0009999

OSTI ID:: 1830034

Alternate ID(s):: OSTI ID: 1979944

Journal Information:: Physical Review D, Journal Name: Physical Review D Vol. 104 Journal Issue: 9; ISSN 2470-0010

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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