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Title: Higgs Pair Production as a Signal of Enhanced Yukawa Couplings

Abstract

Here, we present a nontrivial correlation between the enhancement of the Higgs-fermion couplings and the Higgs pair production cross section in two Higgs doublet models with a flavor symmetry, with implications for LHC searches. This symmetry suppresses flavor-changing neutral couplings of the Higgs boson and allows for a partial explanation of the hierarchy in the Yukawa sector. After taking into account the constraints from electroweak precision measurements, Higgs coupling strength measurements, and unitarity and perturbativity bounds, we identify an interesting region of parameter space leading to enhanced Yukawa couplings as well as enhanced di-Higgs gluon fusion production at the LHC reach. This effect is visible in both the resonant and nonresonant contributions to the Higgs pair production cross section. We encourage dedicated searches based on differential distributions as a novel way to indirectly probe enhanced Higgs couplings to light fermions.

Authors:
; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1460022
Alternate Identifier(s):
OSTI ID: 1423225
Report Number(s):
arXiv:1801.00363; FERMILAB-PUB-17-613-T; MITP-17-106
Journal ID: ISSN 0031-9007; PRLTAO; 021801
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Name: Physical Review Letters Journal Volume: 121 Journal Issue: 2; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Bauer, Martin, Carena, Marcela, and Carmona, Adrián. Higgs Pair Production as a Signal of Enhanced Yukawa Couplings. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.121.021801.
Bauer, Martin, Carena, Marcela, & Carmona, Adrián. Higgs Pair Production as a Signal of Enhanced Yukawa Couplings. United States. doi:https://doi.org/10.1103/PhysRevLett.121.021801
Bauer, Martin, Carena, Marcela, and Carmona, Adrián. Thu . "Higgs Pair Production as a Signal of Enhanced Yukawa Couplings". United States. doi:https://doi.org/10.1103/PhysRevLett.121.021801.
@article{osti_1460022,
title = {Higgs Pair Production as a Signal of Enhanced Yukawa Couplings},
author = {Bauer, Martin and Carena, Marcela and Carmona, Adrián},
abstractNote = {Here, we present a nontrivial correlation between the enhancement of the Higgs-fermion couplings and the Higgs pair production cross section in two Higgs doublet models with a flavor symmetry, with implications for LHC searches. This symmetry suppresses flavor-changing neutral couplings of the Higgs boson and allows for a partial explanation of the hierarchy in the Yukawa sector. After taking into account the constraints from electroweak precision measurements, Higgs coupling strength measurements, and unitarity and perturbativity bounds, we identify an interesting region of parameter space leading to enhanced Yukawa couplings as well as enhanced di-Higgs gluon fusion production at the LHC reach. This effect is visible in both the resonant and nonresonant contributions to the Higgs pair production cross section. We encourage dedicated searches based on differential distributions as a novel way to indirectly probe enhanced Higgs couplings to light fermions.},
doi = {10.1103/PhysRevLett.121.021801},
journal = {Physical Review Letters},
number = 2,
volume = 121,
place = {United States},
year = {2018},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: https://doi.org/10.1103/PhysRevLett.121.021801

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Cited by: 1 work
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    Works referencing / citing this record:

    Enhanced di-Higgs production in the two Higgs doublet model
    journal, February 2019