Search for $\eta_b$ in Two-Photon Events

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A search for the pseudoscalar meson eta_b was performed at LEP~II energies with an integrated luminosity of 700pb^-1. The search, done for the decay modes into 4 and 6 charged particles yielded 0 and 1 candidates, respectively. Upper limits on Gamma_gammagamma(eta_b)*BR for both modes of 57eV and 12...

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Autor principal: Böhrer, A
Lenguaje:eng
Publicado: 2001
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1142/9789812777157_0058
http://cds.cern.ch/record/523166
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author Böhrer, A
author_facet Böhrer, A
author_sort Böhrer, A
collection CERN
description A search for the pseudoscalar meson eta_b was performed at LEP~II energies with an integrated luminosity of 700pb^-1. The search, done for the decay modes into 4 and 6 charged particles yielded 0 and 1 candidates, respectively. Upper limits on Gamma_gammagamma(eta_b)*BR for both modes of 57eV and 128eV were obtained with corresponding limits of 17% and 38% on branching ratios BR(eta_b) -> 4 charged particles and BR(eta_b) -> 6 charged particles at a confidence level of 95%. The candidate has a mass of 9.30 +- 0.04GeV.
id cern-523166
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
record_format invenio
spelling cern-5231662019-09-30T06:29:59Zdoi:10.1142/9789812777157_0058http://cds.cern.ch/record/523166engBöhrer, ASearch for $\eta_b$ in Two-Photon EventsParticle Physics - ExperimentA search for the pseudoscalar meson eta_b was performed at LEP~II energies with an integrated luminosity of 700pb^-1. The search, done for the decay modes into 4 and 6 charged particles yielded 0 and 1 candidates, respectively. Upper limits on Gamma_gammagamma(eta_b)*BR for both modes of 57eV and 128eV were obtained with corresponding limits of 17% and 38% on branching ratios BR(eta_b) -> 4 charged particles and BR(eta_b) -> 6 charged particles at a confidence level of 95%. The candidate has a mass of 9.30 +- 0.04GeV.hep-ex/0110030CERN-ALEPH-PUB-2001-012oai:cds.cern.ch:5231662001-10-16
spellingShingle Particle Physics - Experiment
Böhrer, A
Search for $\eta_b$ in Two-Photon Events
title Search for $\eta_b$ in Two-Photon Events
title_full Search for $\eta_b$ in Two-Photon Events
title_fullStr Search for $\eta_b$ in Two-Photon Events
title_full_unstemmed Search for $\eta_b$ in Two-Photon Events
title_short Search for $\eta_b$ in Two-Photon Events
title_sort search for $\eta_b$ in two-photon events
topic Particle Physics - Experiment
url https://dx.doi.org/10.1142/9789812777157_0058
http://cds.cern.ch/record/523166
work_keys_str_mv AT bohrera searchforetabintwophotonevents

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