Search for a Z' at the Z resonance

The search for an additional heavy gauge boson Z ~ is described. The models considered are based on either a superstring-motivated E6 or on a left-right symmetry and assume a minimal Higgs sector. Cross sections and asymmetries measured with the L3 detector in the vicinity of the Z resonance during...

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Detalles Bibliográficos
Autores principales: Dova, María Teresa, L3 Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 1993
Materias:
Ciencias Exactas
Física
heavy gauge boson
Higgs
L3 detector
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/73364
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-73364
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
heavy gauge boson
Higgs
L3 detector
spellingShingle Ciencias Exactas
Física
heavy gauge boson
Higgs
L3 detector
Dova, María Teresa
L3 Collaboration
Search for a Z' at the Z resonance
topic_facet Ciencias Exactas
Física
heavy gauge boson
Higgs
L3 detector
description The search for an additional heavy gauge boson Z ~ is described. The models considered are based on either a superstring-motivated E6 or on a left-right symmetry and assume a minimal Higgs sector. Cross sections and asymmetries measured with the L3 detector in the vicinity of the Z resonance during the 1990 and 1991 running periods are used to determine limits on the Z-Z' gauge boson mixing angle and on the Z' mass. For Z' masses above the direct limits, we obtain the following allowed ranges of the mixing angle, 0M, at the 95% confidence level: - 0.004 ≲ 0M ≲ 0.015 for the X model, - 0.003 ≲ 0M ≲ 0.020 for the g model, - 0.029 ≲ 0M ≲ 0.010 for the t/ model, - 0.002 ≲ 0M ≲ 0.015 for the LR model.
format Articulo
Articulo
author Dova, María Teresa
L3 Collaboration
author_facet Dova, María Teresa
L3 Collaboration
author_sort Dova, María Teresa
title Search for a Z' at the Z resonance
title_short Search for a Z' at the Z resonance
title_full Search for a Z' at the Z resonance
title_fullStr Search for a Z' at the Z resonance
title_full_unstemmed Search for a Z' at the Z resonance
title_sort search for a z' at the z resonance
publishDate 1993
url http://sedici.unlp.edu.ar/handle/10915/73364
work_keys_str_mv AT dovamariateresa searchforazatthezresonance
AT l3collaboration searchforazatthezresonance
bdutipo_str Repositorios
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