@article{f590c85e00c94240a0c2b5a753c10a29,
title = "Search for D∗(2007)0 → μ+μ− in B− → π−μ+μ− decays",
abstract = "The very rare D∗(2007)0→μ+μ- decay is searched for by analysing B-→π-μ+μ- decays. The analysis uses a sample of beauty mesons produced in proton–proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 \,fb - 1 . The signal signature corresponds to simultaneous peaks in the μ+μ- and π-μ+μ- invariant masses. No evidence for an excess of events over background is observed and an upper limit is set on the branching fraction of the decay at B(D∗(2007)0→μ+μ-)<2.6×10-8 at 90 % confidence level. This is the first limit on the branching fraction of D∗(2007)0→μ+μ- decays and the most stringent limit on D∗(2007) decays to leptonic final states. The analysis is the first search for a rare charm-meson decay exploiting production via beauty decays.",
author = "LHCb Collaboration and R. Aaij and Abdelmotteleb, {A. S.W.} and Beteta, {C. Abellan} and F. Abudin{\'e}n and T. Ackernley and B. Adeva and M. Adinolfi and P. Adlarson and H. Afsharnia 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 Albero, {A. Alfonso} and Z. Aliouche and Cartelle, {P. Alvarez} 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 M. Andreotti and D. Andreou and D. Ao and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and B. Audurier and Perea, {I. B.Bachiller} and S. Bachmann and M. Bachmayer and Back, {J. J.} and A. Bailly-reyre and Rodriguez, {P. Baladron} and V. Balagura and W. Baldini and S. Blusk and Rudolph, {M. S.} and Coutinho, {R. Silva} and T. Skwarnicki",
note = "Publisher Copyright: {\textcopyright} 2023, The Author(s).",
year = "2023",
month = jul,
doi = "10.1140/epjc/s10052-023-11759-6",
language = "English (US)",
volume = "83",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer New York",
number = "7",
}