Determination of the effective electroweak mixing angle from Z decays

The effective electroweak mixing angle sin<sup>2</sup>θw is measured from the production and decay of the Z boson in e+e- interactions. The data sample corresponds to an integrated luminosity of 18 pb-l with about 420 000 hadronic and 40 000 leptonic Z decays. The mixing angle sin 2<s...

Descripción completa

Detalles Bibliográficos
Autores principales: Dova, María Teresa, L3 Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 1993
Materias:
Ciencias Exactas
Física
z boson
electroweak interaction
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/81657
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-81657
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
z boson
electroweak interaction
spellingShingle Ciencias Exactas
Física
z boson
electroweak interaction
Dova, María Teresa
L3 Collaboration
Determination of the effective electroweak mixing angle from Z decays
topic_facet Ciencias Exactas
Física
z boson
electroweak interaction
description The effective electroweak mixing angle sin<sup>2</sup>θw is measured from the production and decay of the Z boson in e+e- interactions. The data sample corresponds to an integrated luminosity of 18 pb-l with about 420 000 hadronic and 40 000 leptonic Z decays. The mixing angle sin 2<sup>2</sup>θw is determined from several independent measurements: the leptonic and hadronic cross sections, the forward-backward asymmetries of charged leptons and b-quarks, and the z-polarization. The results are found to be in good agreement with each other. The value of sin 2<sup>2</sup>θw from a fit to the asymmetries in a model independent method is 0.2321-4-0.0021 and from a global fit to the data in the Standard Model framework is 0.2328±0.0013.
format Articulo
Articulo
author Dova, María Teresa
L3 Collaboration
author_facet Dova, María Teresa
L3 Collaboration
author_sort Dova, María Teresa
title Determination of the effective electroweak mixing angle from Z decays
title_short Determination of the effective electroweak mixing angle from Z decays
title_full Determination of the effective electroweak mixing angle from Z decays
title_fullStr Determination of the effective electroweak mixing angle from Z decays
title_full_unstemmed Determination of the effective electroweak mixing angle from Z decays
title_sort determination of the effective electroweak mixing angle from z decays
publishDate 1993
url http://sedici.unlp.edu.ar/handle/10915/81657
work_keys_str_mv AT dovamariateresa determinationoftheeffectiveelectroweakmixinganglefromzdecays
AT l3collaboration determinationoftheeffectiveelectroweakmixinganglefromzdecays
bdutipo_str Repositorios
_version_ 1764820488295546881

Ejemplares similares