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Studies of b-hadrons at LHCb
A large data set collected at the LHCb experiment in proton-proton collisions during Runs 1 and 2 of the Large Hadron Collider has opened a unique possibility to study heavy beauty hadron states and to broaden knowledge of their spectroscopy and production. Recent results on searches for new excited...
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Lenguaje: | eng |
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SISSA
2021
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Acceso en línea: | https://dx.doi.org/10.22323/1.390.0485 http://cds.cern.ch/record/2750937 |
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author | Matiunin, Slava |
author_facet | Matiunin, Slava |
author_sort | Matiunin, Slava |
collection | CERN |
description | A large data set collected at the LHCb experiment in proton-proton collisions during Runs 1 and 2 of the Large Hadron Collider has opened a unique possibility to study heavy beauty hadron states and to broaden knowledge of their spectroscopy and production. Recent results on searches for new excited $\mathrm{b}$-hadron states, and studies of $\mathrm{b}$-hadron production, are reviewed. In particular, the observation of new excited $\Omega^-_{\mathrm{b}}$ states, the observation of two new narrow $\Lambda_{\mathrm{b}}(6146)^0$ and $\Lambda_{\mathrm{b}}(6152)^0$ states, the observation of new $\Lambda_{\mathrm{b}}^{**0}$ state consistent with the $\Lambda_{\mathrm{b}}(2\mathrm{S})^0$ prediction, a precise measurement of the mass and width of $\Lambda_{\mathrm{b}}(5912)^0$ and $\Lambda_{\mathrm{b}}(5920)^0$ states, and a measurement of the $\mathrm{B}_{\mathrm{c}}^-$ meson production fraction and $\mathrm{B}_{\mathrm{c}}^--\mathrm{B}_{\mathrm{c}}^+$ production asymmetry in 7 and 13 TeV of proton-proton collisions are presented. |
id | cern-2750937 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2021 |
publisher | SISSA |
record_format | invenio |
spelling | cern-27509372021-10-11T09:55:16Zdoi:10.22323/1.390.0485http://cds.cern.ch/record/2750937engMatiunin, SlavaStudies of b-hadrons at LHCbParticle Physics - Experimenthep-exA large data set collected at the LHCb experiment in proton-proton collisions during Runs 1 and 2 of the Large Hadron Collider has opened a unique possibility to study heavy beauty hadron states and to broaden knowledge of their spectroscopy and production. Recent results on searches for new excited $\mathrm{b}$-hadron states, and studies of $\mathrm{b}$-hadron production, are reviewed. In particular, the observation of new excited $\Omega^-_{\mathrm{b}}$ states, the observation of two new narrow $\Lambda_{\mathrm{b}}(6146)^0$ and $\Lambda_{\mathrm{b}}(6152)^0$ states, the observation of new $\Lambda_{\mathrm{b}}^{**0}$ state consistent with the $\Lambda_{\mathrm{b}}(2\mathrm{S})^0$ prediction, a precise measurement of the mass and width of $\Lambda_{\mathrm{b}}(5912)^0$ and $\Lambda_{\mathrm{b}}(5920)^0$ states, and a measurement of the $\mathrm{B}_{\mathrm{c}}^-$ meson production fraction and $\mathrm{B}_{\mathrm{c}}^--\mathrm{B}_{\mathrm{c}}^+$ production asymmetry in 7 and 13 TeV of proton-proton collisions are presented.A large data set collected at the LHCb experiment in proton-proton collisions during Runs 1 and 2 of the Large Hadron Collider has opened a unique possibility to study heavy beauty hadron states and to broaden knowledge of their spectroscopy and production. Recent results on searches for new excited $\mathrm{b}$-hadron states, and studies of $\mathrm{b}$-hadron production, are reviewed. In particular, the observation of new excited $\Omega^-_{\mathrm{b}}$ states, the observation of two new narrow $\Lambda_{\mathrm{b}}(6146)^0$ and $\Lambda_{\mathrm{b}}(6152)^0$ states, the observation of new $\Lambda_{\mathrm{b}}^{**0}$ state consistent with the $\Lambda_{\mathrm{b}}(2\mathrm{S})^0$ prediction, a precise measurement of the mass and width of $\Lambda_{\mathrm{b}}(5912)^0$ and $\Lambda_{\mathrm{b}}(5920)^0$ states, and a measurement of the $\mathrm{B}_{\mathrm{c}}^-$ meson production fraction and $\mathrm{B}_{\mathrm{c}}^--\mathrm{B}_{\mathrm{c}}^+$ production asymmetry in 7 and 13 TeV of proton-proton collisions are presented.A large data set collected at the LHCb experiment in proton-proton collisions during Runs 1 and 2 of the Large Hadron Collider has opened a unique possibility to study heavy beauty hadron states and to broaden knowledge of their spectroscopy and production. Recent results on searches for new excited $\rm{b}$-hadron states, and studies of $\rm{b}$-hadron production, are reviewed. In particular, the observation of new excited $\Omega_{\rm{b}}^-$ states, the observation of two new narrow $\Lambda_{\rm{b}}(6146)^0$ and $\Lambda_{\rm{b}}(6152)^0$ states, the observation of new $\Lambda_{\rm{b}}^{**}$ state consistent with the $\Lambda_{\rm{b}}(2\rm{S})^0$ prediction, a precise measurement of the mass and width of $\Lambda_{\rm{b}}(5912)^0$ and $\Lambda_{\rm{b}}(5920)^0$ states, and a measurement of the $\rm{B}_{\rm{c}}^-$ meson production fraction and $\rm{B}_{\rm{c}}^--\rm{B}_{\rm{c}}^+$ production asymmetry in 7 and 13 TeV of proton-proton collisions are presented.SISSAarXiv:2102.03175LHCb-PROC-2021-004CERN-LHCb-PROC-2021-004oai:cds.cern.ch:27509372021-02-02 |
spellingShingle | Particle Physics - Experiment hep-ex Matiunin, Slava Studies of b-hadrons at LHCb |
title | Studies of b-hadrons at LHCb |
title_full | Studies of b-hadrons at LHCb |
title_fullStr | Studies of b-hadrons at LHCb |
title_full_unstemmed | Studies of b-hadrons at LHCb |
title_short | Studies of b-hadrons at LHCb |
title_sort | studies of b-hadrons at lhcb |
topic | Particle Physics - Experiment hep-ex |
url | https://dx.doi.org/10.22323/1.390.0485 http://cds.cern.ch/record/2750937 |
work_keys_str_mv | AT matiuninslava studiesofbhadronsatlhcb |