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Weak decays of heavy-quark baryons

Weak decays of heavy-quark baryons offer an attractive laboratory to search for effects beyond the Standard Model (SM), complementary to searches in meson decays. However, the properties of these baryons are not well understood. In particular, the $\Omega^-_b$ baryon is the least studied weakly deca...

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Autor principal: Nicolini, Janina
Lenguaje:eng
Publicado: 2023
Materias:
Acceso en línea:http://cds.cern.ch/record/2860003
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author Nicolini, Janina
author_facet Nicolini, Janina
author_sort Nicolini, Janina
collection CERN
description Weak decays of heavy-quark baryons offer an attractive laboratory to search for effects beyond the Standard Model (SM), complementary to searches in meson decays. However, the properties of these baryons are not well understood. In particular, the $\Omega^-_b$ baryon is the least studied weakly decaying $b$ baryon. Therefore, the most precise determination of the $\Omega^{-}_{b}$ baryon mass is reported, using $\Omega^-_b \to J/\psi \Omega^-$ decays at the LHCb experiment. In addition, the relative production rate of the $\Omega^-_b$ baryon in $pp$ collisions at the LHC is determined for the first time. These quantities are crucial to predict and measure branching fractions of $\Omega^{-}_{b}$ baryon decays.
id cern-2860003
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2023
record_format invenio
spelling cern-28600032023-06-08T02:16:06Zhttp://cds.cern.ch/record/2860003engNicolini, JaninaWeak decays of heavy-quark baryonshep-phParticle Physics - Phenomenologyhep-exParticle Physics - ExperimentWeak decays of heavy-quark baryons offer an attractive laboratory to search for effects beyond the Standard Model (SM), complementary to searches in meson decays. However, the properties of these baryons are not well understood. In particular, the $\Omega^-_b$ baryon is the least studied weakly decaying $b$ baryon. Therefore, the most precise determination of the $\Omega^{-}_{b}$ baryon mass is reported, using $\Omega^-_b \to J/\psi \Omega^-$ decays at the LHCb experiment. In addition, the relative production rate of the $\Omega^-_b$ baryon in $pp$ collisions at the LHC is determined for the first time. These quantities are crucial to predict and measure branching fractions of $\Omega^{-}_{b}$ baryon decays.arXiv:2305.15366oai:cds.cern.ch:28600032023-05-24
spellingShingle hep-ph
Particle Physics - Phenomenology
hep-ex
Particle Physics - Experiment
Nicolini, Janina
Weak decays of heavy-quark baryons
title Weak decays of heavy-quark baryons
title_full Weak decays of heavy-quark baryons
title_fullStr Weak decays of heavy-quark baryons
title_full_unstemmed Weak decays of heavy-quark baryons
title_short Weak decays of heavy-quark baryons
title_sort weak decays of heavy-quark baryons
topic hep-ph
Particle Physics - Phenomenology
hep-ex
Particle Physics - Experiment
url http://cds.cern.ch/record/2860003
work_keys_str_mv AT nicolinijanina weakdecaysofheavyquarkbaryons