Amplitude Analysis of the B0 --> K*0 mu+ mu-→ K Decay

An amplitude analysis of the decay is presented using a dataset corresponding to an integrated luminosity of fb of collision data collected with the LHCb experiment. For the first time, the coefficients associated to short-distance physics effects, sensitive to processes beyond the Standard Model, a...

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Autores: Aaij, Roel, Gallas Torreira, Abraham, Abellán Beteta, Carlos, Abdelmotteleb, Ahmed, Adeva Andany, Bernardo, Abudinén, Fernando, Ackernley, Thomas, Adinolfi, Marco, Aidala, Christine, Ajaltouni, Ziad, Akar, Simon, Albicocco, Pietro
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universidad de Santiago de Compostela (USC)
Repositorio:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
Idioma:inglés
OAI Identifier:oai:minerva.usc.gal:10347/44830
Acceso en línea:https://hdl.handle.net/10347/44830
Access Level:acceso abierto
Palabra clave:Flavor changing neutral currents
Leptonic
Semileptonic and radiative decays
Rare decays
Hadron colliders
2290 Física altas energías
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spelling Amplitude Analysis of the B0 --> K*0 mu+ mu-→ K DecayAaij, RoelGallas Torreira, AbrahamAbellán Beteta, CarlosAbdelmotteleb, AhmedAdeva Andany, BernardoAbudinén, FernandoAckernley, ThomasAdinolfi, MarcoAidala, ChristineAjaltouni, ZiadAkar, SimonAlbicocco, PietroFlavor changing neutral currentsLeptonicSemileptonic and radiative decaysRare decaysHadron colliders2290 Física altas energíasAn amplitude analysis of the decay is presented using a dataset corresponding to an integrated luminosity of fb of collision data collected with the LHCb experiment. For the first time, the coefficients associated to short-distance physics effects, sensitive to processes beyond the Standard Model, are extracted directly from the data through a -unbinned amplitude analysis, where is the invariant mass squared. Long-distance contributions, which originate from non-factorisable QCD processes, are systematically investigated and the most accurate assessment to date of their impact on the physical observables is obtained. The pattern of measured corrections to the short-distance couplings is found to be consistent with previous analyses of - to -quark transitions, with the largest discrepancy from the Standard Model predictions found to be at the level of 1.8 standard deviations. The global significance of the observed differences in the decay is 1.4 standard deviations.American Physical SocietyUniversidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)20242024-03-2820242024-03-28journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10347/44830reponame:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostelainstname:Universidad de Santiago de Compostela (USC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:minerva.usc.gal:10347/448302026-06-15T12:47:27Z
dc.title.none.fl_str_mv Amplitude Analysis of the B0 --> K*0 mu+ mu-→ K Decay
title Amplitude Analysis of the B0 --> K*0 mu+ mu-→ K Decay
spellingShingle Amplitude Analysis of the B0 --> K*0 mu+ mu-→ K Decay
Aaij, Roel
Flavor changing neutral currents
Leptonic
Semileptonic and radiative decays
Rare decays
Hadron colliders
2290 Física altas energías
title_short Amplitude Analysis of the B0 --> K*0 mu+ mu-→ K Decay
title_full Amplitude Analysis of the B0 --> K*0 mu+ mu-→ K Decay
title_fullStr Amplitude Analysis of the B0 --> K*0 mu+ mu-→ K Decay
title_full_unstemmed Amplitude Analysis of the B0 --> K*0 mu+ mu-→ K Decay
title_sort Amplitude Analysis of the B0 --> K*0 mu+ mu-→ K Decay
dc.creator.none.fl_str_mv Aaij, Roel
Gallas Torreira, Abraham
Abellán Beteta, Carlos
Abdelmotteleb, Ahmed
Adeva Andany, Bernardo
Abudinén, Fernando
Ackernley, Thomas
Adinolfi, Marco
Aidala, Christine
Ajaltouni, Ziad
Akar, Simon
Albicocco, Pietro
author Aaij, Roel
author_facet Aaij, Roel
Gallas Torreira, Abraham
Abellán Beteta, Carlos
Abdelmotteleb, Ahmed
Adeva Andany, Bernardo
Abudinén, Fernando
Ackernley, Thomas
Adinolfi, Marco
Aidala, Christine
Ajaltouni, Ziad
Akar, Simon
Albicocco, Pietro
author_role author
author2 Gallas Torreira, Abraham
Abellán Beteta, Carlos
Abdelmotteleb, Ahmed
Adeva Andany, Bernardo
Abudinén, Fernando
Ackernley, Thomas
Adinolfi, Marco
Aidala, Christine
Ajaltouni, Ziad
Akar, Simon
Albicocco, Pietro
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)
dc.subject.none.fl_str_mv Flavor changing neutral currents
Leptonic
Semileptonic and radiative decays
Rare decays
Hadron colliders
2290 Física altas energías
topic Flavor changing neutral currents
Leptonic
Semileptonic and radiative decays
Rare decays
Hadron colliders
2290 Física altas energías
description An amplitude analysis of the decay is presented using a dataset corresponding to an integrated luminosity of fb of collision data collected with the LHCb experiment. For the first time, the coefficients associated to short-distance physics effects, sensitive to processes beyond the Standard Model, are extracted directly from the data through a -unbinned amplitude analysis, where is the invariant mass squared. Long-distance contributions, which originate from non-factorisable QCD processes, are systematically investigated and the most accurate assessment to date of their impact on the physical observables is obtained. The pattern of measured corrections to the short-distance couplings is found to be consistent with previous analyses of - to -quark transitions, with the largest discrepancy from the Standard Model predictions found to be at the level of 1.8 standard deviations. The global significance of the observed differences in the decay is 1.4 standard deviations.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-03-28
2024
2024-03-28
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10347/44830
url https://hdl.handle.net/10347/44830
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
instname:Universidad de Santiago de Compostela (USC)
instname_str Universidad de Santiago de Compostela (USC)
reponame_str Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
collection Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869424350529060864
score 15.811543

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