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Analysis of Λ0b→ pK−μ+μ− decays

  • The LHCb Collaboration

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

The differential branching fraction and angular coefficients of Formula Presented decays are measured in bins of the dimuon mass squared and dihadron mass. The analysis is performed using a data set corresponding to 9 fb−1 of integrated luminosity collected with the LHCb detector between 2011 and 2018. The data are consistent with receiving contributions from a mixture of Λ resonances with different spin-parity quantum numbers. The angular coefficients show a pattern of vector-axial vector interference that is a characteristic of the type of flavour-changing neutral-current transition relevant for these decays.

Original languageEnglish
Article number147
Pages (from-to)1-32
Number of pages33
JournalJournal of High Energy Physics
Volume2024
Issue number12
Early online date19 Dec 2024
DOIs
Publication statusPublished - 2024

Bibliographical note

Publisher Copyright:
© 2024, Springer Science and Business Media Deutschland GmbH. All rights reserved.

Funding

Funders
Ministerio de Ciencia, Innovación y Universidades
Institutul National de Cercetare-Dezvoltare pentru Fizica si Inginerie Nucleara 'Horia Hulubei'
Agence Nationale de la Recherche
Australian Research Council
Australian Research Data Commons
Stockholm Resilience Centre, Stockholm University
National Academy of Sciences of Ukraine
Narodowe Centrum Nauki
Institut national de physique nucléaire et de physique des particules
Science and Technology Facilities Council
H2020 Marie Skłodowska-Curie Actions
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Program of Guangzhou
Leverhulme Trust
SURF
Financiadora de Estudos e Projetos
Polish WLCG
Catholic Archdiocese of Sydney
Centre National de la Recherche Scientifique
Bundesministerium für Bildung und Forschung
NSF
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Karlsruhe Institute of Technology
Deutsche Forschungsgemeinschaft
Région Auvergne-Rhône-Alpes
DOE
International Council of Shopping Centers
Agencia Estatal de Investigación
Ministry of Science and Technology of the People's Republic of China
GridPP
Deutsches Elektronen-Synchrotron
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
NextGenerationEU
Royal Society
Sociedad Española de Reumatología
European Research Council
EPLANET
Ministerstwo Edukacji i Nauki
CERN
Fundamental Research Funds for the Central Universities
Alexander von Humboldt-Stiftung
Istituto Nazionale di Fisica Nucleare
Key Project of Frontier Science Research of Chinese Academy of Sciences
UK Research and Innovation
National Natural Science Foundation of China

    Keywords

    • B Physics
    • Flavour Changing Neutral Currents
    • Flavour Physics
    • Hadron-Hadron Scattering

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