Probing the Higgs self-coupling through double Higgs production in vector boson scattering at the LHC
In this work we explore the sensitivity to the Higgs self-coupling λ in the production of two Higgs bosons via vector boson scattering at the LHC. Although these production channels, concretely W+W−→HH and ZZ→HH, have lower rates than gluon-gluon fusion, they benefit from being tree level processes,...
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doaj-9d21c3c5b7e747d594238be441c4324a2020-11-25T00:22:50ZengElsevierNuclear Physics B0550-32132019-08-01945Probing the Higgs self-coupling through double Higgs production in vector boson scattering at the LHCErnesto Arganda0Claudia Garcia-Garcia1Maria Jose Herrero2IFLP, CONICET - Dpto. de Física, Universidad Nacional de La Plata, C.C. 67, 1900 La Plata, Argentina; Departamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Corresponding author.Departamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, SpainDepartamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, SpainIn this work we explore the sensitivity to the Higgs self-coupling λ in the production of two Higgs bosons via vector boson scattering at the LHC. Although these production channels, concretely W+W−→HH and ZZ→HH, have lower rates than gluon-gluon fusion, they benefit from being tree level processes, being independent of top physics and having very distinctive kinematics that allow us to obtain very clean experimental signatures. This makes them competitive channels concerning the sensitivity to the Higgs self-coupling. In order to give predictions for the sensitivity to this coupling, we first study the role of λ at the subprocess level, both in and beyond the Standard Model, to move afterwards to the LHC scenario. We characterize the pp→HHjj case first and then provide quantitative results for the values of λ that can be probed at the LHC in vector boson scattering processes after considering the Higgs boson decays. We focus mainly on pp→bb¯bb¯jj, since it has the largest signal rates, and also comment on the potential of other channels, such as pp→bb¯γγjj, as they lead to cleaner, although smaller, signals. Our whole study is performed for a center of mass energy of s=14TeV and for various future expected LHC luminosities.http://www.sciencedirect.com/science/article/pii/S0550321319301737 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ernesto Arganda Claudia Garcia-Garcia Maria Jose Herrero |
spellingShingle |
Ernesto Arganda Claudia Garcia-Garcia Maria Jose Herrero Probing the Higgs self-coupling through double Higgs production in vector boson scattering at the LHC Nuclear Physics B |
author_facet |
Ernesto Arganda Claudia Garcia-Garcia Maria Jose Herrero |
author_sort |
Ernesto Arganda |
title |
Probing the Higgs self-coupling through double Higgs production in vector boson scattering at the LHC |
title_short |
Probing the Higgs self-coupling through double Higgs production in vector boson scattering at the LHC |
title_full |
Probing the Higgs self-coupling through double Higgs production in vector boson scattering at the LHC |
title_fullStr |
Probing the Higgs self-coupling through double Higgs production in vector boson scattering at the LHC |
title_full_unstemmed |
Probing the Higgs self-coupling through double Higgs production in vector boson scattering at the LHC |
title_sort |
probing the higgs self-coupling through double higgs production in vector boson scattering at the lhc |
publisher |
Elsevier |
series |
Nuclear Physics B |
issn |
0550-3213 |
publishDate |
2019-08-01 |
description |
In this work we explore the sensitivity to the Higgs self-coupling λ in the production of two Higgs bosons via vector boson scattering at the LHC. Although these production channels, concretely W+W−→HH and ZZ→HH, have lower rates than gluon-gluon fusion, they benefit from being tree level processes, being independent of top physics and having very distinctive kinematics that allow us to obtain very clean experimental signatures. This makes them competitive channels concerning the sensitivity to the Higgs self-coupling. In order to give predictions for the sensitivity to this coupling, we first study the role of λ at the subprocess level, both in and beyond the Standard Model, to move afterwards to the LHC scenario. We characterize the pp→HHjj case first and then provide quantitative results for the values of λ that can be probed at the LHC in vector boson scattering processes after considering the Higgs boson decays. We focus mainly on pp→bb¯bb¯jj, since it has the largest signal rates, and also comment on the potential of other channels, such as pp→bb¯γγjj, as they lead to cleaner, although smaller, signals. Our whole study is performed for a center of mass energy of s=14TeV and for various future expected LHC luminosities. |
url |
http://www.sciencedirect.com/science/article/pii/S0550321319301737 |
work_keys_str_mv |
AT ernestoarganda probingthehiggsselfcouplingthroughdoublehiggsproductioninvectorbosonscatteringatthelhc AT claudiagarciagarcia probingthehiggsselfcouplingthroughdoublehiggsproductioninvectorbosonscatteringatthelhc AT mariajoseherrero probingthehiggsselfcouplingthroughdoublehiggsproductioninvectorbosonscatteringatthelhc |
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