Analysis of tbW and ttZ couplings from CLEO and LEP-SLC data

We update the constraints on anomalous dimension four $\tbw$ and $\ttz$ couplings by using CLEO $b \ra s \gamma$ and LEP/SLC precision $Z$-pole data. It is found that the data imposes very stringent bounds on them. Moreover, the $2 \sigma$ pull from SM predictions of $A_{LR}$(hadrons), $A_b$ and $A_...

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Detalles Bibliográficos
Autores principales: Larios, F, Pérez, M A, Yuan, C P
Lenguaje:eng
Publicado: 1999
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(99)00541-9
http://cds.cern.ch/record/382263
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author Larios, F
Pérez, M A
Yuan, C P
author_facet Larios, F
Pérez, M A
Yuan, C P
author_sort Larios, F
collection CERN
description We update the constraints on anomalous dimension four $\tbw$ and $\ttz$ couplings by using CLEO $b \ra s \gamma$ and LEP/SLC precision $Z$-pole data. It is found that the data imposes very stringent bounds on them. Moreover, the $2 \sigma$ pull from SM predictions of $A_{LR}$(hadrons), $A_b$ and $A_{FB}$(b) have little chance of being explained by the strongly constrained anomalous couplings.
id cern-382263
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
record_format invenio
spelling cern-3822632019-09-30T06:29:59Zdoi:10.1016/S0370-2693(99)00541-9http://cds.cern.ch/record/382263engLarios, FPérez, M AYuan, C PAnalysis of tbW and ttZ couplings from CLEO and LEP-SLC dataParticle Physics - PhenomenologyWe update the constraints on anomalous dimension four $\tbw$ and $\ttz$ couplings by using CLEO $b \ra s \gamma$ and LEP/SLC precision $Z$-pole data. It is found that the data imposes very stringent bounds on them. Moreover, the $2 \sigma$ pull from SM predictions of $A_{LR}$(hadrons), $A_b$ and $A_{FB}$(b) have little chance of being explained by the strongly constrained anomalous couplings.hep-ph/9903394MSU-HEP-90315oai:cds.cern.ch:3822631999
spellingShingle Particle Physics - Phenomenology
Larios, F
Pérez, M A
Yuan, C P
Analysis of tbW and ttZ couplings from CLEO and LEP-SLC data
title Analysis of tbW and ttZ couplings from CLEO and LEP-SLC data
title_full Analysis of tbW and ttZ couplings from CLEO and LEP-SLC data
title_fullStr Analysis of tbW and ttZ couplings from CLEO and LEP-SLC data
title_full_unstemmed Analysis of tbW and ttZ couplings from CLEO and LEP-SLC data
title_short Analysis of tbW and ttZ couplings from CLEO and LEP-SLC data
title_sort analysis of tbw and ttz couplings from cleo and lep-slc data
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0370-2693(99)00541-9
http://cds.cern.ch/record/382263
work_keys_str_mv AT lariosf analysisoftbwandttzcouplingsfromcleoandlepslcdata
AT perezma analysisoftbwandttzcouplingsfromcleoandlepslcdata
AT yuancp analysisoftbwandttzcouplingsfromcleoandlepslcdata

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