Collider searches for scalar singlets across lifetimes

Collider searches for scalar singlets across lifetimes

Abstract Spin-0 singlets arise in well-motivated extensions of the Standard Model. Their lifetime determines the best search strategies at hadron and lepton colliders. To cover a large range of singlet decay lengths, we investigate bounds from Higgs decays into a pair of singlets, considering signat...

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Main Authors: Elina Fuchs, Oleksii Matsedonskyi, Inbar Savoray, Matthias Schlaffer
Format: Article
Language:English
Published: SpringerOpen 2021-04-01
Series:Journal of High Energy Physics
Subjects:
Beyond Standard Model
Higgs Physics
Online Access:https://doi.org/10.1007/JHEP04(2021)019
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spelling doaj-e1329725b8b24b0b89a4ed65e277845d2021-04-11T11:07:08ZengSpringerOpenJournal of High Energy Physics1029-84792021-04-012021413310.1007/JHEP04(2021)019Collider searches for scalar singlets across lifetimesElina Fuchs0Oleksii Matsedonskyi1Inbar Savoray2Matthias Schlaffer3University of Chicago, Department of PhysicsWeizmann Institute of ScienceWeizmann Institute of ScienceUniversity of Chicago, Department of PhysicsAbstract Spin-0 singlets arise in well-motivated extensions of the Standard Model. Their lifetime determines the best search strategies at hadron and lepton colliders. To cover a large range of singlet decay lengths, we investigate bounds from Higgs decays into a pair of singlets, considering signatures of invisible decays, displaced and delayed jets, and coupling fits of untagged decays. We examine the generic scalar singlet and the relaxion, and derive a matching as well as qualitative differences between them. For each model, we discuss its natural parameter space and the searches probing it.https://doi.org/10.1007/JHEP04(2021)019Beyond Standard ModelHiggs Physics
collection DOAJ
language English
format Article
sources DOAJ
author Elina Fuchs
Oleksii Matsedonskyi
Inbar Savoray
Matthias Schlaffer
spellingShingle Elina Fuchs
Oleksii Matsedonskyi
Inbar Savoray
Matthias Schlaffer
Collider searches for scalar singlets across lifetimes
Journal of High Energy Physics
Beyond Standard Model
Higgs Physics
author_facet Elina Fuchs
Oleksii Matsedonskyi
Inbar Savoray
Matthias Schlaffer
author_sort Elina Fuchs
title Collider searches for scalar singlets across lifetimes
title_short Collider searches for scalar singlets across lifetimes
title_full Collider searches for scalar singlets across lifetimes
title_fullStr Collider searches for scalar singlets across lifetimes
title_full_unstemmed Collider searches for scalar singlets across lifetimes
title_sort collider searches for scalar singlets across lifetimes
publisher SpringerOpen
series Journal of High Energy Physics
issn 1029-8479
publishDate 2021-04-01
description Abstract Spin-0 singlets arise in well-motivated extensions of the Standard Model. Their lifetime determines the best search strategies at hadron and lepton colliders. To cover a large range of singlet decay lengths, we investigate bounds from Higgs decays into a pair of singlets, considering signatures of invisible decays, displaced and delayed jets, and coupling fits of untagged decays. We examine the generic scalar singlet and the relaxion, and derive a matching as well as qualitative differences between them. For each model, we discuss its natural parameter space and the searches probing it.
topic Beyond Standard Model
Higgs Physics
url https://doi.org/10.1007/JHEP04(2021)019
work_keys_str_mv AT elinafuchs collidersearchesforscalarsingletsacrosslifetimes
AT oleksiimatsedonskyi collidersearchesforscalarsingletsacrosslifetimes
AT inbarsavoray collidersearchesforscalarsingletsacrosslifetimes
AT matthiasschlaffer collidersearchesforscalarsingletsacrosslifetimes
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