Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons

The time-integrated <math><mtext>B</mtext><msup><mi></mi><mn>0</mn></msup><mtext>B</mtext><mtext>̄</mtext><msup><mi></mi><mn>0</mn></msup></math> mixing parameter and the forward-b...

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Detalles Bibliográficos
Autores principales: Dova, María Teresa, L3 Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 1999
Materias:
Ciencias Exactas
Física
Medición
asimetríaa
large electron positron collider
L3 detector
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/79977
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-79977
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
Medición
asimetríaa
large electron positron collider
L3 detector
spellingShingle Ciencias Exactas
Física
Medición
asimetríaa
large electron positron collider
L3 detector
Dova, María Teresa
L3 Collaboration
Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
topic_facet Ciencias Exactas
Física
Medición
asimetríaa
large electron positron collider
L3 detector
description The time-integrated <math><mtext>B</mtext><msup><mi></mi><mn>0</mn></msup><mtext>B</mtext><mtext>̄</mtext><msup><mi></mi><mn>0</mn></msup></math> mixing parameter and the forward-backward charge asymmetry in the process <math><mtext>e</mtext><msup><mi></mi><mn>+</mn></msup><mtext>e</mtext><msup><mi></mi><mn>−</mn></msup><mtext>→b</mtext><mtext>b</mtext><mtext>̄</mtext></math> are measured in hadronic Z events containing prompt muons or electrons, collected by the L3 experiment in the years 1990 to 1995. The total sample of 3.3 milion hadronic Z events with a mean centre-of-mass energy of 91.26 GeV yields: A<sup>b</sup><sub>FB</sub>=0.0960±0.0066(stat.)±0.0033(sys.), χ<sub>b</sub>=0.1192±0.0068(stat.)±0.0051(sys.). This asymmetry measurement together with measurements at energies away from the Z pole energy yield a pole asymmetry and corresponding effective electroweak mixing angle of: A<sup>0,b</sup><sub>FB</sub>=0.1015±0.0064(stat.)±0.0035(sys.), <math><mtext>sin</mtext><msup><mi></mi><mn>2</mn></msup><mtext>θ</mtext><mtext>̄</mtext><msub><mi></mi><mn><mtext>W</mtext></mn></msub><mtext>=0.2318±0.0013</mtext></math>.
format Articulo
Articulo
author Dova, María Teresa
L3 Collaboration
author_facet Dova, María Teresa
L3 Collaboration
author_sort Dova, María Teresa
title Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
title_short Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
title_full Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
title_fullStr Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
title_full_unstemmed Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
title_sort measurement of the e<sup>+</sup>e<sup>-</sup> → z → bb forward-backward asymmetry and the b<sup>0</sup>b<sup>0</sup> mixing parameter using prompt leptons
publishDate 1999
url http://sedici.unlp.edu.ar/handle/10915/79977
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AT l3collaboration measurementoftheesupsupesupsupzbbforwardbackwardasymmetryandthebsup0supbsup0supmixingparameterusingpromptleptons
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