Constraining Sterile Neutrinos Using Decay Width Measurements of SM Bosons

The mixing of right-handed neutrinos with the SM neutrinos contributes to the interactions of these neutrinos with the SM particles. Consequently, they will contribute to the decay widths of the SM W, Z, and Higgs bosons provided that they are kinematically allowed to be produced from these SM gaug...

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Main Author: Lopamudra Sahoo
Format: Article
Language:English
Published: Andromeda Publishing and Academic Services 2023-03-01
Series:Letters in High Energy Physics
Subjects:
Online Access:http://journals.andromedapublisher.com/index.php/LHEP/article/view/346
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author Lopamudra Sahoo
author_facet Lopamudra Sahoo
author_sort Lopamudra Sahoo
collection DOAJ
description The mixing of right-handed neutrinos with the SM neutrinos contributes to the interactions of these neutrinos with the SM particles. Consequently, they will contribute to the decay widths of the SM W, Z, and Higgs bosons provided that they are kinematically allowed to be produced from these SM gauge bosons. Here, we show that the measured decay widths of Higgs, Z andW bosons can be used to probe sterile neutrinos, if they are kinematically allowed to be produced from these heavy Standard Model (SM) particle decays via the active-sterile neutrino mixing. We analyze the sensitivity of these measured SM quantities to constrain the active-sterile neutrino mixing as a function of the sterile neutrino mass. We make a comparative study of these constraints with other existing constraints from electroweak precision data, beam dump experiments, and peak searches, as well as from big bang nucleosynthesis.
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spelling doaj.art-56d2daf792a74de98c1320913f0b98532023-03-21T01:41:01ZengAndromeda Publishing and Academic ServicesLetters in High Energy Physics2632-27142023-03-012023110.31526/lhep.2023.346Constraining Sterile Neutrinos Using Decay Width Measurements of SM BosonsLopamudra Sahoo0Ravenshaw University The mixing of right-handed neutrinos with the SM neutrinos contributes to the interactions of these neutrinos with the SM particles. Consequently, they will contribute to the decay widths of the SM W, Z, and Higgs bosons provided that they are kinematically allowed to be produced from these SM gauge bosons. Here, we show that the measured decay widths of Higgs, Z andW bosons can be used to probe sterile neutrinos, if they are kinematically allowed to be produced from these heavy Standard Model (SM) particle decays via the active-sterile neutrino mixing. We analyze the sensitivity of these measured SM quantities to constrain the active-sterile neutrino mixing as a function of the sterile neutrino mass. We make a comparative study of these constraints with other existing constraints from electroweak precision data, beam dump experiments, and peak searches, as well as from big bang nucleosynthesis. http://journals.andromedapublisher.com/index.php/LHEP/article/view/346left-right symmetric model, seesaw mechanism, sterile neutrino
spellingShingle Lopamudra Sahoo
Constraining Sterile Neutrinos Using Decay Width Measurements of SM Bosons
Letters in High Energy Physics
left-right symmetric model, seesaw mechanism, sterile neutrino
title Constraining Sterile Neutrinos Using Decay Width Measurements of SM Bosons
title_full Constraining Sterile Neutrinos Using Decay Width Measurements of SM Bosons
title_fullStr Constraining Sterile Neutrinos Using Decay Width Measurements of SM Bosons
title_full_unstemmed Constraining Sterile Neutrinos Using Decay Width Measurements of SM Bosons
title_short Constraining Sterile Neutrinos Using Decay Width Measurements of SM Bosons
title_sort constraining sterile neutrinos using decay width measurements of sm bosons
topic left-right symmetric model, seesaw mechanism, sterile neutrino
url http://journals.andromedapublisher.com/index.php/LHEP/article/view/346
work_keys_str_mv AT lopamudrasahoo constrainingsterileneutrinosusingdecaywidthmeasurementsofsmbosons