The KARMEN anomaly, light neutralinos and supernova SN1987A

The KARMEN experiment observes a time anomaly in events induced by pion decay at rest. This anomaly can be ascribed to the production of a new weakly interacting particle X with mass m_X\sim 34 MeV. We show that a recently proposed identification of the X particle with the lightest neutralino \chi i...

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Detalles Bibliográficos
Autor principal: Kachelriess, M.
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1088/1126-6708/2000/02/010
http://cds.cern.ch/record/421810
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author Kachelriess, M.
author_facet Kachelriess, M.
author_sort Kachelriess, M.
collection CERN
description The KARMEN experiment observes a time anomaly in events induced by pion decay at rest. This anomaly can be ascribed to the production of a new weakly interacting particle X with mass m_X\sim 34 MeV. We show that a recently proposed identification of the X particle with the lightest neutralino \chi in the frame work of the MSSM with broken R parity is in contradiction to optical observations of SN 1987A.
id cern-421810
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
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spelling cern-4218102023-03-14T19:58:34Zdoi:10.1088/1126-6708/2000/02/010http://cds.cern.ch/record/421810engKachelriess, M.The KARMEN anomaly, light neutralinos and supernova SN1987AParticle Physics - PhenomenologyThe KARMEN experiment observes a time anomaly in events induced by pion decay at rest. This anomaly can be ascribed to the production of a new weakly interacting particle X with mass m_X\sim 34 MeV. We show that a recently proposed identification of the X particle with the lightest neutralino \chi in the frame work of the MSSM with broken R parity is in contradiction to optical observations of SN 1987A.The KARMEN experiment observes a time anomaly in events induced by pion decay at rest. This anomaly can be ascribed to the production of a new weakly interacting particle X with mass m_X\sim 34 MeV. We show that a recently proposed identification of the X particle with the lightest neutralino \chi in the frame work of the MSSM with broken R parity is in contradiction to optical observations of type II supernovae.hep-ph/0001160CERN-TH-2000-014CERN-TH-2000-014oai:cds.cern.ch:4218102000-01-18
spellingShingle Particle Physics - Phenomenology
Kachelriess, M.
The KARMEN anomaly, light neutralinos and supernova SN1987A
title The KARMEN anomaly, light neutralinos and supernova SN1987A
title_full The KARMEN anomaly, light neutralinos and supernova SN1987A
title_fullStr The KARMEN anomaly, light neutralinos and supernova SN1987A
title_full_unstemmed The KARMEN anomaly, light neutralinos and supernova SN1987A
title_short The KARMEN anomaly, light neutralinos and supernova SN1987A
title_sort karmen anomaly, light neutralinos and supernova sn1987a
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1088/1126-6708/2000/02/010
http://cds.cern.ch/record/421810
work_keys_str_mv AT kachelriessm thekarmenanomalylightneutralinosandsupernovasn1987a
AT kachelriessm karmenanomalylightneutralinosandsupernovasn1987a

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