Detecting long-lived particles trapped in detector material at the LHC

We propose a two-stage strategy to search for new long-lived particles that could be produced at the CERN LHC, become trapped in detector material, and decay later. In the first stage, metal rods are exposed to LHC collisions in an experimental cavern. In the second stage, they are immersed in liqui...

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Detalles Bibliográficos
Autores principales: Kieseler, Jan, Alimena, Juliette, Simms, Jasmine, Aarrestad, Thea, Pierini, Maurizio, Kish, Alexander
Lenguaje:eng
Publicado: 2021
Materias:
hep-ex
Particle Physics - Experiment
hep-ph
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.105.L051701
http://cds.cern.ch/record/2790446
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author Kieseler, Jan
Alimena, Juliette
Simms, Jasmine
Aarrestad, Thea
Pierini, Maurizio
Kish, Alexander
author_facet Kieseler, Jan
Alimena, Juliette
Simms, Jasmine
Aarrestad, Thea
Pierini, Maurizio
Kish, Alexander
author_sort Kieseler, Jan
collection CERN
description We propose a two-stage strategy to search for new long-lived particles that could be produced at the CERN LHC, become trapped in detector material, and decay later. In the first stage, metal rods are exposed to LHC collisions in an experimental cavern. In the second stage, they are immersed in liquid argon at a different location, where out-of-time decays could be detected. Using a benchmark of pair-produced long-lived gluinos, we show that this experiment would have unique sensitivity to gluino-neutralino mass splittings down to 3 GeV, in previously uncovered lifetimes of days to years.
id cern-2790446
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2021
record_format invenio
spelling cern-27904462023-09-02T04:06:48Zdoi:10.1103/PhysRevD.105.L051701http://cds.cern.ch/record/2790446engKieseler, JanAlimena, JulietteSimms, JasmineAarrestad, TheaPierini, MaurizioKish, AlexanderDetecting long-lived particles trapped in detector material at the LHChep-exParticle Physics - Experimenthep-phParticle Physics - PhenomenologyWe propose a two-stage strategy to search for new long-lived particles that could be produced at the CERN LHC, become trapped in detector material, and decay later. In the first stage, metal rods are exposed to LHC collisions in an experimental cavern. In the second stage, they are immersed in liquid argon at a different location, where out-of-time decays could be detected. Using a benchmark of pair-produced long-lived gluinos, we show that this experiment would have unique sensitivity to gluino-neutralino mass splittings down to 3 GeV, in previously uncovered lifetimes of days to years.We propose to implement a two-stage detection strategy for exotic long-lived particles that could be produced at the CERN LHC, become trapped in detector material, and decay later. The proposed strategy relies on an array of metal rods, combined to form a high-density target. In a first stage, the rods are exposed to radiation from LHC collisions in one of the experimental caverns. In a second stage, they are individually immersed in liquid argon in a different experimental hall, where out-of-time decays could produce a detectable signal. Using a benchmark case of long-lived gluino pair production, we show that this experiment would be sensitive to a wide range of masses. Such an experiment would have unique sensitivity to gluino-neutralino mass splittings down to 3 GeV, in previously uncovered particle lifetimes ranging from days to years.arXiv:2110.13837FERMILAB-PUB-21-632-NDoai:cds.cern.ch:27904462021-10-26
spellingShingle hep-ex
Particle Physics - Experiment
hep-ph
Particle Physics - Phenomenology
Kieseler, Jan
Alimena, Juliette
Simms, Jasmine
Aarrestad, Thea
Pierini, Maurizio
Kish, Alexander
Detecting long-lived particles trapped in detector material at the LHC
title Detecting long-lived particles trapped in detector material at the LHC
title_full Detecting long-lived particles trapped in detector material at the LHC
title_fullStr Detecting long-lived particles trapped in detector material at the LHC
title_full_unstemmed Detecting long-lived particles trapped in detector material at the LHC
title_short Detecting long-lived particles trapped in detector material at the LHC
title_sort detecting long-lived particles trapped in detector material at the lhc
topic hep-ex
Particle Physics - Experiment
hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.105.L051701
http://cds.cern.ch/record/2790446
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AT alimenajuliette detectinglonglivedparticlestrappedindetectormaterialatthelhc
AT simmsjasmine detectinglonglivedparticlestrappedindetectormaterialatthelhc
AT aarrestadthea detectinglonglivedparticlestrappedindetectormaterialatthelhc
AT pierinimaurizio detectinglonglivedparticlestrappedindetectormaterialatthelhc
AT kishalexander detectinglonglivedparticlestrappedindetectormaterialatthelhc

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