Fourth-generation leptons at LEP2

From non-observation at LEP1, a lower mass limit of 45 GeV has been established on any additional sequential fermion beyond the three generations. Precision measurements have further constrained the number of such additional generations, either degenerate or nearly so, to be at most one. LEP2, an en...

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Detalles Bibliográficos
Autores principales: Bhattacharyya, Gautam, Choudhury, Debajyoti
Lenguaje:eng
Publicado: 1995
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0550-3213(96)00127-7
http://cds.cern.ch/record/293119
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author Bhattacharyya, Gautam
Choudhury, Debajyoti
author_facet Bhattacharyya, Gautam
Choudhury, Debajyoti
author_sort Bhattacharyya, Gautam
collection CERN
description From non-observation at LEP1, a lower mass limit of 45 GeV has been established on any additional sequential fermion beyond the three generations. Precision measurements have further constrained the number of such additional generations, either degenerate or nearly so, to be at most one. LEP2, an energy-upgraded version of LEP1, would provide greater mass-reach in the search for such particles. We study the pair-production of fourth-generation leptons for various LEP2 energy options. We find that in most cases such particles could be discovered/ruled out up to the kinematic limit.
id cern-293119
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1995
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spelling cern-2931192021-09-17T02:38:49Zdoi:10.1016/0550-3213(96)00127-7http://cds.cern.ch/record/293119engBhattacharyya, GautamChoudhury, DebajyotiFourth-generation leptons at LEP2Particle Physics - PhenomenologyFrom non-observation at LEP1, a lower mass limit of 45 GeV has been established on any additional sequential fermion beyond the three generations. Precision measurements have further constrained the number of such additional generations, either degenerate or nearly so, to be at most one. LEP2, an energy-upgraded version of LEP1, would provide greater mass-reach in the search for such particles. We study the pair-production of fourth-generation leptons for various LEP2 energy options. We find that in most cases such particles could be discovered/ruled out up to the kinematic limit.From non-observation at LEP1, a lower mass limit of 45 GeV has been established on any additional sequential fermion beyond the three generations. Precision measurements have further constrained the number of such additional generations, either degenerate or nearly so, to be at most one. LEP2, an energy-upgraded version of LEP1, would provide greater mass-reach in the search for such particles. We study the pair-production of fourth-generation leptons for various LEP2 energy options. We find that in most cases such particles could be discovered/ruled out up to the kinematic limit.From non-observation at LEP1, a lower mass limit of 45 GeV has been established on any additional sequential fermion beyond the three generations. Precision measurements have further constrained the number of such additional generations, either degenerate or nearly so, to be at most one. LEP2, an energy-upgraded version of LEP1, would provide greater mass-reach in the search for such particles. We study the pair-production of fourth-generation leptons for various LEP2 energy options. We find that in most cases such particles could be discovered/ruled out up to the kinematic limit.From non-observation at LEP1, a lower mass limit of 45 GeV has been established on any additional sequential fermion beyond three generations. Precision measurements have further constrained the number of such additional generations, either degenerate or nearly so, to be at most one. LEP2hep-ph/9512317CERN-TH-95-306MPI-PTH-95-135CERN-TH-95-306MPI-PAE-PTH-95-135oai:cds.cern.ch:2931191995-12-15
spellingShingle Particle Physics - Phenomenology
Bhattacharyya, Gautam
Choudhury, Debajyoti
Fourth-generation leptons at LEP2
title Fourth-generation leptons at LEP2
title_full Fourth-generation leptons at LEP2
title_fullStr Fourth-generation leptons at LEP2
title_full_unstemmed Fourth-generation leptons at LEP2
title_short Fourth-generation leptons at LEP2
title_sort fourth-generation leptons at lep2
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0550-3213(96)00127-7
http://cds.cern.ch/record/293119
work_keys_str_mv AT bhattacharyyagautam fourthgenerationleptonsatlep2
AT choudhurydebajyoti fourthgenerationleptonsatlep2

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