Search for lepton-number-violating B − → D ( * ) + μ − μ − decays

Physical review. D/Physical review. D. 2026 Open access

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Authors: R. Aaij, A. S. W. Abdelmotteleb, Carlos Abellán Beteta, C. Abellán Beteta, T. Ackernley, A. A. Adefisoye, B. Adeva, M. Adinolfi, P. Adlarson, H. Afsharnia, C. Aidala, Z. Ajaltouni
+88 more S. Akar, K. Carvalho Akiba, Muzammil Akthar, P. Albicocco, J. Albrecht, R. Aleksiejūnas, F. Alessio, P. Álvarez Cartelle, R. Amalric, S. Amato, S. Amato, Y. Amhis, L. An, L. An, M. Andersson, P. Andreola, M. Andreotti, Sergio Andres Estrada, Alessia Anelli, D. Ao, C. Arata, F. Archilli, Zaratsyan Areg, Marco Argenton, S. Arguedas Cuendis, Lisa Arnone, A. Artamonov, M. Artuso, E. Aslanides, R. Ataíde Da Silva, M. Atzeni, B. Audurier, Juliette Authier, D. Bacher, I. Bachiller, S. Bachmann, Marie Bachmayer, John J Back, P. Baladrón Rodríguez, V. Balagura, A Balboni, W. Baldini, Zachary Baldwin, Luca Balzani, H. -R. Bao, J. Baptista de Souza Leite, C. Barbero Pretel, M. Barbetti, I. R. Barbosa, Roger John Barlow, Mikhail Barnyakov, S. Barsuk, William James Barter, J. Bartz, Saliha Bashir, B. Batsukh, Piera Battista, A. Bay, M. Becker, M. Becker, F. Bedeschi, I. Bediaga, Noah Albin Behling, S. Belin, Alberto Bellavista, K. Belous, I. Belov, I. Belyaev, G. Benane, G. Bencivenni, E. Ben-Haim, Alexander Berezhnoy, R. Bernet, R. Bernet, A. Bertolin, C. Betancourt, F. Betti, J. Bex, Ia. Bezshyiko, Ia. Bezshyiko, Xabier Cid Vidal, M. S. Bieker, N. V. Biesuz, Alice Biolchini, M. Birch, F. C. R. Bishop, A. Bitadze, A. Bizzeti
DOI: 10.1103/r27c-9ghw
Cited by: 0
References: 32

Abstract

A search is performed for lepton-number-violating B − → D ( * ) + μ − μ − decays, using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb − 1 . No significant signal is observed, and upper limits are set on the branching fractions, B ( B − → D + μ − μ − ) < 4.6 × 10 − 8 and B ( B − → D * + μ − μ − ) < 5.9 × 10 − 8 , at the 95% confidence level.

Fields of Study & Subjects

Particle physics theoretical and experimental studies Particle Detector Development and Performance Quantum Chromodynamics and Particle Interactions

Publication details

Journal / source
Physical review. D/Physical review. D.
Volume
113
Issue
9
Publication date
6 April 2026
Language
EN