Higgs boson physics and broken flavor symmetry – LHC phenomenology

Berger, Edmond L.; Zhang, Hao

doi:10.1016/j.nuclphysbps.2015.09.121

Title: Higgs boson physics and broken flavor symmetry – LHC phenomenology

Abstract

The LHC implications are presented of a simplified model of broken flavor symmetry in which a new scalar (a flavon) emerges with mass in the TeV range. We summarize the influence of the model on Higgs boson physics, notably on the production cross section and decay branching fractions. Limits are obtained on the flavon φ from heavy Higgs boson searches at the LHC at 7 and 8 TeV. The branching fractions of the flavon are computed as a function of the flavon mass and the Higgs-flavon mixing angle. We explore possible discovery of the flavon at 14 TeV, particularly via the φ→Z⁰Z⁰ decay channel in the 2ℓ2ℓ' final state, and through standard model Higgs boson pair production φ→hh in the $$b\bar{b}$$γγ final state. The flavon mass range up to 500 GeV could probed down to quite small values of the Higgs-flavon mixing angle with 100 fb^-1 of integrated luminosity at 14 TeV.

Authors:

Berger, Edmond L. ^[1]; Zhang, Hao ^[2]

Argonne National Lab. (ANL), Argonne, IL (United States). High Energy Physics Division
Univ. of California, Santa Barbara, CA (United States). Dept. of Physics

Publication Date:: Fri Apr 01 00:00:00 EDT 2016

Research Org.:: Univ. of California, Santa Barbara, CA (United States)

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

OSTI Identifier:: 1602007

Grant/Contract Number:: SC0011702

Resource Type:: Accepted Manuscript

Journal Name:: Nuclear and Particle Physics Proceedings

Additional Journal Information:: Journal Volume: 273-275; Journal Issue: C; Conference: 37. Conference on High Energy Physics , Valencia (Spain), 2 - 9 Jul 20141; Journal ID: ISSN 2405-6014

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Higgs boson; broken flavor symmetry; flavon; Higgs-flavon mixing; LHC phenomenology

Citation Formats


                    Berger, Edmond L., and Zhang, Hao. Higgs boson physics and broken flavor symmetry – LHC phenomenology.  United States: N. p., 2016. 
Web.  doi:10.1016/j.nuclphysbps.2015.09.121.

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                    Berger, Edmond L., & Zhang, Hao. Higgs boson physics and broken flavor symmetry – LHC phenomenology.  United States.  https://doi.org/10.1016/j.nuclphysbps.2015.09.121

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                    Berger, Edmond L., and Zhang, Hao. Fri .  
"Higgs boson physics and broken flavor symmetry – LHC phenomenology".  United States.  https://doi.org/10.1016/j.nuclphysbps.2015.09.121.  https://www.osti.gov/servlets/purl/1602007.

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@article{osti_1602007,

  title        = {Higgs boson physics and broken flavor symmetry – LHC phenomenology},

  author       = {Berger, Edmond L. and Zhang, Hao},

  abstractNote = {The LHC implications are presented of a simplified model of broken flavor symmetry in which a new scalar (a flavon) emerges with mass in the TeV range. We summarize the influence of the model on Higgs boson physics, notably on the production cross section and decay branching fractions. Limits are obtained on the flavon φ from heavy Higgs boson searches at the LHC at 7 and 8 TeV. The branching fractions of the flavon are computed as a function of the flavon mass and the Higgs-flavon mixing angle. We explore possible discovery of the flavon at 14 TeV, particularly via the φ→Z0Z0 decay channel in the 2ℓ2ℓ' final state, and through standard model Higgs boson pair production φ→hh in the $b\bar{b}$γγ final state. The flavon mass range up to 500 GeV could probed down to quite small values of the Higgs-flavon mixing angle with 100 fb-1 of integrated luminosity at 14 TeV.},

  doi          = {10.1016/j.nuclphysbps.2015.09.121},

  journal      = {Nuclear and Particle Physics Proceedings},

  number       = C,

  volume       = 273-275,

  place        = {United States},

  year         = {Fri Apr 01 00:00:00 EDT 2016},

  month        = {Fri Apr 01 00:00:00 EDT 2016}

}

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Works referenced in this record:

Minimal flavour violation: an effective field theory approach
journal, November 2002

D'Ambrosio, G.; Giudice, G. F.; Isidori, G.
Nuclear Physics B, Vol. 645, Issue 1-2
DOI: 10.1016/S0550-3213(02)00836-2

Higgs-flavon mixing and LHC phenomenology in a simplified model of broken flavor symmetry
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Berger, Edmond L.; Giddings, Steven B.; Wang, Haichen
Physical Review D, Vol. 90, Issue 7
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Sequential flavor symmetry breaking
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Feldmann, Thorsten; Jung, Martin; Mannel, Thomas
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New constraint on a strongly interacting Higgs sector
journal, August 1990

Peskin, Michael E.; Takeuchi, Tatsu
Physical Review Letters, Vol. 65, Issue 8
DOI: 10.1103/PhysRevLett.65.964

CERN LHC phenomenology of an extended standard model with a real scalar singlet
journal, February 2008

Barger, Vernon; Langacker, Paul; McCaskey, Mathew
Physical Review D, Vol. 77, Issue 3
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Li, Yuemeng; Liu, Hangfan; Li, Hongming
arXiv
DOI: 10.48550/arxiv.1905.02686

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Title: Higgs boson physics and broken flavor symmetry – LHC phenomenology

Abstract

Citation Formats

Minimal flavour violation: an effective field theory approach journal, November 2002

Higgs-flavon mixing and LHC phenomenology in a simplified model of broken flavor symmetry journal, October 2014

Sequential flavor symmetry breaking journal, August 2009

New constraint on a strongly interacting Higgs sector journal, August 1990

CERN LHC phenomenology of an extended standard model with a real scalar singlet journal, February 2008

Spectrum of complex networks preprint, January 2018

Feature-Fused Context-Encoding Network for Neuroanatomy Segmentation preprint, January 2019

Minimal flavour violation: an effective field theory approach
journal, November 2002

Higgs-flavon mixing and LHC phenomenology in a simplified model of broken flavor symmetry
journal, October 2014

Sequential flavor symmetry breaking
journal, August 2009

New constraint on a strongly interacting Higgs sector
journal, August 1990

CERN LHC phenomenology of an extended standard model with a real scalar singlet
journal, February 2008

Spectrum of complex networks
preprint, January 2018

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