First estimate of the NA62 sensitivity to the rare decay K+ → µ+νµX, X → γγ

Light, weakly coupled new particles with couplings to muons have been proposed which could resolve the discrepancy between measured and predicted values for the anomalous magnetic moment of the muon. They may also act as dark matter mediators. A muonphilic scalar particle X may be produced in rare k...

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Detalles Bibliográficos
Autor principal: Murta, Rebecca
Lenguaje:eng
Publicado: 2020
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2740892
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author Murta, Rebecca
author_facet Murta, Rebecca
author_sort Murta, Rebecca
collection CERN
description Light, weakly coupled new particles with couplings to muons have been proposed which could resolve the discrepancy between measured and predicted values for the anomalous magnetic moment of the muon. They may also act as dark matter mediators. A muonphilic scalar particle X may be produced in rare kaon decays and could be observed by NA62. In this project, the branching ratio sensitivity for the process K+ → µ+νµX, X → γγ is evaluated, for masses mX between 20 and 300 MeV/c2. The best sensitivity is found to be of the order 10−7, for mX above 180 MeV/c2.
id cern-2740892
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
record_format invenio
spelling cern-27408922020-10-08T19:40:14Zhttp://cds.cern.ch/record/2740892engMurta, RebeccaFirst estimate of the NA62 sensitivity to the rare decay K+ → µ+νµX, X → γγParticle Physics - ExperimentLight, weakly coupled new particles with couplings to muons have been proposed which could resolve the discrepancy between measured and predicted values for the anomalous magnetic moment of the muon. They may also act as dark matter mediators. A muonphilic scalar particle X may be produced in rare kaon decays and could be observed by NA62. In this project, the branching ratio sensitivity for the process K+ → µ+νµX, X → γγ is evaluated, for masses mX between 20 and 300 MeV/c2. The best sensitivity is found to be of the order 10−7, for mX above 180 MeV/c2.CERN-STUDENTS-Note-2020-024oai:cds.cern.ch:27408922020-10-08
spellingShingle Particle Physics - Experiment
Murta, Rebecca
First estimate of the NA62 sensitivity to the rare decay K+ → µ+νµX, X → γγ
title First estimate of the NA62 sensitivity to the rare decay K+ → µ+νµX, X → γγ
title_full First estimate of the NA62 sensitivity to the rare decay K+ → µ+νµX, X → γγ
title_fullStr First estimate of the NA62 sensitivity to the rare decay K+ → µ+νµX, X → γγ
title_full_unstemmed First estimate of the NA62 sensitivity to the rare decay K+ → µ+νµX, X → γγ
title_short First estimate of the NA62 sensitivity to the rare decay K+ → µ+νµX, X → γγ
title_sort first estimate of the na62 sensitivity to the rare decay k+ → µ+νµx, x → γγ
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2740892
work_keys_str_mv AT murtarebecca firstestimateofthena62sensitivitytotheraredecaykmnmxxng

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