Finding Z' bosons coupled preferentially to the third family at CERN LEP and the Fermilab Tevatron

Z' bosons that couple preferentially to the third generation fermions can arise in models with extended weak (SU(2)xSU(2)) or hypercharge (U(1)xU(1)) gauge groups. We show that existing limits on quark-lepton compositeness set by the LEP and Tevatron experiments translate into lower bounds of o...

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Detalles Bibliográficos
Autores principales: Lynch, K R, Simmons, E H, Narain, M, Mrenna, S
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.63.035006
http://cds.cern.ch/record/448923
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author Lynch, K R
Simmons, E H
Narain, M
Mrenna, S
author_facet Lynch, K R
Simmons, E H
Narain, M
Mrenna, S
author_sort Lynch, K R
collection CERN
description Z' bosons that couple preferentially to the third generation fermions can arise in models with extended weak (SU(2)xSU(2)) or hypercharge (U(1)xU(1)) gauge groups. We show that existing limits on quark-lepton compositeness set by the LEP and Tevatron experiments translate into lower bounds of order a few hundred GeV on the masses of these Z' bosons. Resonances of this mass can be directly produced at the Tevatron. Accordingly, we explore in detail the limits that can be set at Run II using the process p pbar -> Z' -> tau tau -> e mu. We also comment on the possibility of using hadronically-decaying taus to improve the limits.
id cern-448923
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
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spelling cern-4489232019-09-30T06:29:59Zdoi:10.1103/PhysRevD.63.035006http://cds.cern.ch/record/448923engLynch, K RSimmons, E HNarain, MMrenna, SFinding Z' bosons coupled preferentially to the third family at CERN LEP and the Fermilab TevatronParticle Physics - PhenomenologyZ' bosons that couple preferentially to the third generation fermions can arise in models with extended weak (SU(2)xSU(2)) or hypercharge (U(1)xU(1)) gauge groups. We show that existing limits on quark-lepton compositeness set by the LEP and Tevatron experiments translate into lower bounds of order a few hundred GeV on the masses of these Z' bosons. Resonances of this mass can be directly produced at the Tevatron. Accordingly, we explore in detail the limits that can be set at Run II using the process p pbar -> Z' -> tau tau -> e mu. We also comment on the possibility of using hadronically-decaying taus to improve the limits.hep-ph/0007286BU-HEP-2000-04UCD-2000-12oai:cds.cern.ch:4489232000-07-25
spellingShingle Particle Physics - Phenomenology
Lynch, K R
Simmons, E H
Narain, M
Mrenna, S
Finding Z' bosons coupled preferentially to the third family at CERN LEP and the Fermilab Tevatron
title Finding Z' bosons coupled preferentially to the third family at CERN LEP and the Fermilab Tevatron
title_full Finding Z' bosons coupled preferentially to the third family at CERN LEP and the Fermilab Tevatron
title_fullStr Finding Z' bosons coupled preferentially to the third family at CERN LEP and the Fermilab Tevatron
title_full_unstemmed Finding Z' bosons coupled preferentially to the third family at CERN LEP and the Fermilab Tevatron
title_short Finding Z' bosons coupled preferentially to the third family at CERN LEP and the Fermilab Tevatron
title_sort finding z' bosons coupled preferentially to the third family at cern lep and the fermilab tevatron
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.63.035006
http://cds.cern.ch/record/448923
work_keys_str_mv AT lynchkr findingzbosonscoupledpreferentiallytothethirdfamilyatcernlepandthefermilabtevatron
AT simmonseh findingzbosonscoupledpreferentiallytothethirdfamilyatcernlepandthefermilabtevatron
AT narainm findingzbosonscoupledpreferentiallytothethirdfamilyatcernlepandthefermilabtevatron
AT mrennas findingzbosonscoupledpreferentiallytothethirdfamilyatcernlepandthefermilabtevatron

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