Determination of short- and long-distance contributions in B0 →k∗0μ+μ- decays

(LHCb Collaboration)

doi:10.1103/PhysRevD.109.052009

Determination of short- and long-distance contributions in B0 →k∗0μ+μ- decays

(LHCb Collaboration)

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University of Liverpool
Universidade de Santiago de Compostela
University of Bristol
Uppsala University
European Organization for Nuclear Research
University of Michigan, Ann Arbor
Clermont-Auvergne University
University of Cincinnati
LNF-INFN
University of Dortmund
University of Glasgow
University of Barcelona
University of Manchester
University of Cambridge
Sorbonne Université
Instituto de Biofisica da UFRJ
Université Paris-Saclay
State Key Laboratory of Nuclear Physics and Technology
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Sezione INFN di Ferrara
Syracuse University
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
University of Chinese Academy of Sciences
INFN Roma Tor Vergata
University of Rome “Tor Vergata”
Consejo Nacional de Rectores (CONARE)
Aix-Marseille Université
Massachusetts Institute of Technology
Ip Paris
University of Oxford
Laboratoire de Physique des Particules
University of Heidelberg
ENAC-IIC-GEL
Centro Brasileiro de Pesquisas Fisicas
University of Florence
Pontifícia Universidade Católica do Rio de Janeiro
University of Edinburgh
RWTH Aachen University
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Scuola Normale Superiore di Pisa
Institute of High Energy Physics, Chinese Academy of Sciences
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Universitat Ramon LLull - CSIC
University of Padova
Institute for Nuclear Physics
Imperial College London
Maastricht University
University of Ferrara
University of Maryland, College Park
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South China Normal University
Wuhan University
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University of Genoa
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Institute of Nuclear Research, National Academy of Sciences in Ukraine
Universidade da Coruña
Horia Hulubei National Institute of Physics and Nuclear Engineering
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Universidad Nacional Autónoma de Honduras
MST-8, Los Alamos National Laboratory
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Centro Federal De Educacão Tecnológica Celso Suckow Da Fonseca
Università degli studi di Bari Aldo Moro
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Departement de Physique Nucleaire (SPhN)
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Università degli Studi della Basilicata
Max-Planck-Institut für Kernphysik
University of Siena
Universidad de Alcalá

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

An amplitude analysis of the B0→K∗0μ+μ- decay is presented. The analysis is based on data collected by the LHCb experiment from proton-proton collisions at s=7, 8 and 13 TeV, corresponding to an integrated luminosity of 4.7 fb-1. For the first time, Wilson coefficients and nonlocal hadronic contributions are accessed directly from the unbinned data, where the latter are parametrized as a function of q2 with a polynomial expansion. Wilson coefficients and nonlocal hadronic parameters are determined under two alternative hypotheses: the first relies on experimental information alone, while the second one includes information from theoretical predictions for the nonlocal contributions. Both models obtain similar results for the parameters of interest. The overall level of compatibility with the Standard Model is evaluated to be between 1.8 and 1.9 standard deviations when looking at the C9 Wilson coefficient alone, and between 1.3 and 1.4 standard deviations when considering the full set of C9,C10,C9′ and C10′ Wilson coefficients. The ranges reflect the theoretical assumptions made in the analysis.

langue originale	Anglais
Numéro d'article	052009
journal	Physical Review D
Volume	109
Numéro de publication	5
Les DOIs	https://doi.org/10.1103/PhysRevD.109.052009
état	Publié - 1 mars 2024

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10.1103/PhysRevD.109.052009

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@article{e5e10e3c89044865888b3120a3a2bc6e,

title = "Determination of short- and long-distance contributions in B0 →k∗0μ+μ- decays",

abstract = "An amplitude analysis of the B0→K∗0μ+μ- decay is presented. The analysis is based on data collected by the LHCb experiment from proton-proton collisions at s=7, 8 and 13 TeV, corresponding to an integrated luminosity of 4.7 fb-1. For the first time, Wilson coefficients and nonlocal hadronic contributions are accessed directly from the unbinned data, where the latter are parametrized as a function of q2 with a polynomial expansion. Wilson coefficients and nonlocal hadronic parameters are determined under two alternative hypotheses: the first relies on experimental information alone, while the second one includes information from theoretical predictions for the nonlocal contributions. Both models obtain similar results for the parameters of interest. The overall level of compatibility with the Standard Model is evaluated to be between 1.8 and 1.9 standard deviations when looking at the C9 Wilson coefficient alone, and between 1.3 and 1.4 standard deviations when considering the full set of C9,C10,C9′ and C10′ Wilson coefficients. The ranges reflect the theoretical assumptions made in the analysis.",

author = "\{(LHCb Collaboration)\} and R. Aaij and Abdelmotteleb, \{A. S.W.\} and \{Abellan Beteta\}, C. and F. Abudin{\'e}n and T. Ackernley and B. Adeva and M. Adinolfi and P. Adlarson and C. Agapopoulou and Aidala, \{C. A.\} and Z. Ajaltouni and S. Akar and K. Akiba and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and Z. Aliouche and \{Alvarez Cartelle\}, P. and R. Amalric and S. Amato and Amey, \{J. L.\} and Y. Amhis and L. An and L. Anderlini and M. Andersson and A. Andreianov and P. Andreola and M. Andreotti and D. Andreou and A. Anelli and D. Ao and F. Archilli and M. Argenton and \{Arguedas Cuendis\}, S. and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and B. Audurier and D. Bacher and \{Bachiller Perea\}, I. and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and A. Bailly-Reyre and V. Balagura and F. Fleuret and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2024 CERN. ",

year = "2024",

month = mar,

day = "1",

doi = "10.1103/PhysRevD.109.052009",

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volume = "109",

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AU - (LHCb Collaboration)

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Abellan Beteta, C.

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adlarson, P.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Akiba, K.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Aliouche, Z.

AU - Alvarez Cartelle, P.

AU - Amalric, R.

AU - Amato, S.

AU - Amey, J. L.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andersson, M.

AU - Andreianov, A.

AU - Andreola, P.

AU - Andreotti, M.

AU - Andreou, D.

AU - Anelli, A.

AU - Ao, D.

AU - Archilli, F.

AU - Argenton, M.

AU - Arguedas Cuendis, S.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bacher, D.

AU - Bachiller Perea, I.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Bailly-Reyre, A.

AU - Balagura, V.

AU - Fleuret, F.

AU - Maurice, E.

PY - 2024/3/1

Y1 - 2024/3/1

N2 - An amplitude analysis of the B0→K∗0μ+μ- decay is presented. The analysis is based on data collected by the LHCb experiment from proton-proton collisions at s=7, 8 and 13 TeV, corresponding to an integrated luminosity of 4.7 fb-1. For the first time, Wilson coefficients and nonlocal hadronic contributions are accessed directly from the unbinned data, where the latter are parametrized as a function of q2 with a polynomial expansion. Wilson coefficients and nonlocal hadronic parameters are determined under two alternative hypotheses: the first relies on experimental information alone, while the second one includes information from theoretical predictions for the nonlocal contributions. Both models obtain similar results for the parameters of interest. The overall level of compatibility with the Standard Model is evaluated to be between 1.8 and 1.9 standard deviations when looking at the C9 Wilson coefficient alone, and between 1.3 and 1.4 standard deviations when considering the full set of C9,C10,C9′ and C10′ Wilson coefficients. The ranges reflect the theoretical assumptions made in the analysis.

AB - An amplitude analysis of the B0→K∗0μ+μ- decay is presented. The analysis is based on data collected by the LHCb experiment from proton-proton collisions at s=7, 8 and 13 TeV, corresponding to an integrated luminosity of 4.7 fb-1. For the first time, Wilson coefficients and nonlocal hadronic contributions are accessed directly from the unbinned data, where the latter are parametrized as a function of q2 with a polynomial expansion. Wilson coefficients and nonlocal hadronic parameters are determined under two alternative hypotheses: the first relies on experimental information alone, while the second one includes information from theoretical predictions for the nonlocal contributions. Both models obtain similar results for the parameters of interest. The overall level of compatibility with the Standard Model is evaluated to be between 1.8 and 1.9 standard deviations when looking at the C9 Wilson coefficient alone, and between 1.3 and 1.4 standard deviations when considering the full set of C9,C10,C9′ and C10′ Wilson coefficients. The ranges reflect the theoretical assumptions made in the analysis.

UR - https://www.scopus.com/pages/publications/85189098962

U2 - 10.1103/PhysRevD.109.052009

DO - 10.1103/PhysRevD.109.052009

M3 - Article

AN - SCOPUS:85189098962

SN - 2470-0010

VL - 109

JO - Physical Review D

JF - Physical Review D

IS - 5

M1 - 052009

ER -

Determination of short- and long-distance contributions in B0 →k∗0μ+μ- decays

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