Bounding the charm Yukawa coupling

Coyle, Nina M.; Wagner, Carlos E. M.; Wei, Viska

doi:10.1103/PhysRevD.100.073013

Title: Bounding the charm Yukawa coupling

Abstract

The study of the properties of the observed Higgs boson is one of the main research activities in high-energy physics. Although the couplings of the Higgs to the weak gauge bosons and third-generation quark and leptons have been studied in detail, little is known about the Higgs couplings to first- and second-generation fermions. In this article, we study the charm quark-Higgs coupling in the so-called kappa framework. We emphasize the existence of specific correlations between the Higgs couplings that can render the measured LHC Higgs production rates close to the Standard Model (SM) values in the presence of large deviations of the charm coupling from its SM value, kappa(c) = 1. Based on this knowledge, we update the indirect bounds on kappa(c) through a fit to the precision Higgs measurements at the LHC. We also examine the limits on kappa(c) arising from the radiative decay H -> J/psi + gamma, the charm-quark-associated Higgs production, charm-quark decays of the Higgs field, charge asymmetry in W-+/- + H production, and differential production cross section distributions. Estimates for the future LHC sensitivity on kappa(c) at the high-luminosity run are provided.

Authors:

; Wagner, Carlos E. M.; Wei, Viska

Publication Date:: 2019-10-24

Research Org.:: Univ. of Chicago, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

OSTI Identifier:: 1571684

Alternate Identifier(s):: OSTI ID: 1595726; OSTI ID: 1818147

Grant/Contract Number:: SC0009924; AC02-06CH11357; FG02-13ER41958

Resource Type:: Published Article

Journal Name:: Physical Review D

Additional Journal Information:: Journal Name: Physical Review D Journal Volume: 100 Journal Issue: 7; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Charm quark; Higgs bosons

Citation Formats


                    Coyle, Nina M., Wagner, Carlos E. M., and Wei, Viska. Bounding the charm Yukawa coupling.  United States: N. p., 2019. 
Web.  doi:10.1103/PhysRevD.100.073013.

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                    Coyle, Nina M., Wagner, Carlos E. M., & Wei, Viska. Bounding the charm Yukawa coupling.  United States.  https://doi.org/10.1103/PhysRevD.100.073013

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                    Coyle, Nina M., Wagner, Carlos E. M., and Wei, Viska. Thu .  
"Bounding the charm Yukawa coupling".  United States.  https://doi.org/10.1103/PhysRevD.100.073013.

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@article{osti_1571684,

  title        = {Bounding the charm Yukawa coupling},

  author       = {Coyle, Nina M. and Wagner, Carlos E. M. and Wei, Viska},

  abstractNote = {The study of the properties of the observed Higgs boson is one of the main research activities in high-energy physics. Although the couplings of the Higgs to the weak gauge bosons and third-generation quark and leptons have been studied in detail, little is known about the Higgs couplings to first- and second-generation fermions. In this article, we study the charm quark-Higgs coupling in the so-called kappa framework. We emphasize the existence of specific correlations between the Higgs couplings that can render the measured LHC Higgs production rates close to the Standard Model (SM) values in the presence of large deviations of the charm coupling from its SM value, kappa(c) = 1. Based on this knowledge, we update the indirect bounds on kappa(c) through a fit to the precision Higgs measurements at the LHC. We also examine the limits on kappa(c) arising from the radiative decay H -> J/psi + gamma, the charm-quark-associated Higgs production, charm-quark decays of the Higgs field, charge asymmetry in W-+/- + H production, and differential production cross section distributions. Estimates for the future LHC sensitivity on kappa(c) at the high-luminosity run are provided.},

  doi          = {10.1103/PhysRevD.100.073013},

  journal      = {Physical Review D},

  number       = 7,

  volume       = 100,

  place        = {United States},

  year         = {2019},

  month        = {10}

}

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Works referencing / citing this record:

Higgs bosons with large couplings to light quarks
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Egana-Ugrinovic, Daniel; Homiller, Samuel; Meade, Patrick
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Title: Bounding the charm Yukawa coupling

Abstract

Citation Formats

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