Extraction of neutrino Yukawa parameters from displaced vertices of sneutrinos

Extraction of neutrino Yukawa parameters from displaced vertices of sneutrinos

Abstract We study displaced signatures of sneutrino pairs potentially emerging at the Large Hadron Collider (LHC) in a Next-to-Minimal Supersymmetric Standard Model supplemented with right-handed neutrinos triggering a Type-I seesaw mechanism. We show how such signatures can be established through a...

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Main Authors: Amit Chakraborty, Stefano Moretti, Claire H. Shepherd-Themistocleous, Harri Waltari
Format: Article
Language:English
Published: SpringerOpen 2021-06-01
Series:Journal of High Energy Physics
Subjects:
Supersymmetry Phenomenology
Online Access:https://doi.org/10.1007/JHEP06(2021)027
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spelling doaj-c68e4e7ca03346b4ba30d333dc7e8f6c2021-06-06T11:08:23ZengSpringerOpenJournal of High Energy Physics1029-84792021-06-012021612010.1007/JHEP06(2021)027Extraction of neutrino Yukawa parameters from displaced vertices of sneutrinosAmit Chakraborty0Stefano Moretti1Claire H. Shepherd-Themistocleous2Harri Waltari3Department of Physics, School of Engineering and Sciences, SRM University AP AmaravatiParticle Physics Department, STFC Rutherford Appleton LaboratoryParticle Physics Department, STFC Rutherford Appleton LaboratoryParticle Physics Department, STFC Rutherford Appleton LaboratoryAbstract We study displaced signatures of sneutrino pairs potentially emerging at the Large Hadron Collider (LHC) in a Next-to-Minimal Supersymmetric Standard Model supplemented with right-handed neutrinos triggering a Type-I seesaw mechanism. We show how such signatures can be established through a heavy Higgs portal, the sneutrinos then decaying to charged leptons and charginos giving rise to further leptons or hadrons. We finally illustrate how the Yukawa parameters of neutrinos can be extracted by measuring the lifetime of the sneutrino from the displaced vertices, thereby characterising the dynamics of the underlying mechanism of neutrino mass generation. We show our numerical results for the case of both the current and High-Luminosity LHC.https://doi.org/10.1007/JHEP06(2021)027Supersymmetry Phenomenology
collection DOAJ
language English
format Article
sources DOAJ
author Amit Chakraborty
Stefano Moretti
Claire H. Shepherd-Themistocleous
Harri Waltari
spellingShingle Amit Chakraborty
Stefano Moretti
Claire H. Shepherd-Themistocleous
Harri Waltari
Extraction of neutrino Yukawa parameters from displaced vertices of sneutrinos
Journal of High Energy Physics
Supersymmetry Phenomenology
author_facet Amit Chakraborty
Stefano Moretti
Claire H. Shepherd-Themistocleous
Harri Waltari
author_sort Amit Chakraborty
title Extraction of neutrino Yukawa parameters from displaced vertices of sneutrinos
title_short Extraction of neutrino Yukawa parameters from displaced vertices of sneutrinos
title_full Extraction of neutrino Yukawa parameters from displaced vertices of sneutrinos
title_fullStr Extraction of neutrino Yukawa parameters from displaced vertices of sneutrinos
title_full_unstemmed Extraction of neutrino Yukawa parameters from displaced vertices of sneutrinos
title_sort extraction of neutrino yukawa parameters from displaced vertices of sneutrinos
publisher SpringerOpen
series Journal of High Energy Physics
issn 1029-8479
publishDate 2021-06-01
description Abstract We study displaced signatures of sneutrino pairs potentially emerging at the Large Hadron Collider (LHC) in a Next-to-Minimal Supersymmetric Standard Model supplemented with right-handed neutrinos triggering a Type-I seesaw mechanism. We show how such signatures can be established through a heavy Higgs portal, the sneutrinos then decaying to charged leptons and charginos giving rise to further leptons or hadrons. We finally illustrate how the Yukawa parameters of neutrinos can be extracted by measuring the lifetime of the sneutrino from the displaced vertices, thereby characterising the dynamics of the underlying mechanism of neutrino mass generation. We show our numerical results for the case of both the current and High-Luminosity LHC.
topic Supersymmetry Phenomenology
url https://doi.org/10.1007/JHEP06(2021)027
work_keys_str_mv AT amitchakraborty extractionofneutrinoyukawaparametersfromdisplacedverticesofsneutrinos
AT stefanomoretti extractionofneutrinoyukawaparametersfromdisplacedverticesofsneutrinos
AT clairehshepherdthemistocleous extractionofneutrinoyukawaparametersfromdisplacedverticesofsneutrinos
AT harriwaltari extractionofneutrinoyukawaparametersfromdisplacedverticesofsneutrinos
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