A search for rare $B \rightarrow D μ^+ μ^-$ decays
Creators: name: LHCb Collaboration
name: Aaij, R.
name: Abdelmotteleb, A. S. W.
name: Beteta, C. Abellan
name: Abudinén, F.
name: Ackernley, T.
name: Adeva, B.
name: Adinolfi, M.
name: Adlarson, P.
name: Afsharnia, H.
name: Agapopoulou, C.
name: Aidala, C. A.
name: Ajaltouni, Z.
name: Akar, S.
name: Akiba, K.
name: Albicocco, P.
name: Albrecht, J.
name: Alessio, F.
name: Alexander, M.
name: Albero, A. Alfonso
name: Aliouche, Z.
name: Cartelle, P. Alvarez
name: Amalric, R.
name: Amato, S.
name: Amey, J. L.
name: Amhis, Y.
name: An, L.
name: Anderlini, L.
name: Andersson, M.
name: Andreianov, A.
name: Andreotti, M.
name: Andreou, D.
name: Ao, D.
name: Archilli, F.
name: Artamonov, A.
name: Artuso, M.
name: Aslanides, E.
name: Atzeni, M.
name: Audurier, B.
name: Perea, I. Bachiller
name: Bachmann, S.
name: Bachmayer, M.
name: Back, J. J.
name: Bailly-reyre, A.
name: Rodriguez, P. Baladron
name: Balagura, V.
name: Baldini, W.
name: Leite, J. Baptista de Souza
name: Barbetti, M.
name: Barlow, R. J.
name: Barsuk, S.
name: Barter, W.
name: Bartolini, M.
name: Baryshnikov, F.
name: Basels, J. M.
name: Bassi, G.
name: Batsukh, B.
name: Battig, A.
name: Bay, A.
name: Beck, A.
name: Becker, M.
name: Bedeschi, F.
name: Bediaga, I. B.
name: Beiter, A.
name: Belin, S.
name: Bellee, V.
name: Belous, K.
name: Belov, I.
name: Belyaev, I.
name: Benane, G.
name: Bencivenni, G.
name: Ben-Haim, E.
name: Berezhnoy, A.
name: Bernet, R.
name: Andres, S. Bernet
name: Berninghoff, D.
name: Bernstein, H. C.
name: Bertella, C.
name: Bertolin, A.
name: Betancourt, C.
name: Betti, F.
name: Bezshyiko, Ia.
name: Bhom, J.
name: Bian, L.
name: Bieker, M. S.
name: Biesuz, N. V.
name: Billoir, P.
name: Biolchini, A.
name: Birch, M.
name: Bishop, F. C. R.
name: Bitadze, A.
name: Bizzeti, A.
name: Blago, M. P.
name: Blake, T.
name: Blanc, F.
name: Blank, J. E.
name: Blusk, S.
name: Bobulska, D.
name: Bocharnikov, V.
name: Boelhauve, J. A.
name: Garcia, O. Boente
name: Boettcher, T.
name: Boldyrev, A.
name: Bolognani, C. S.
name: Bolzonella, R.
name: Bondar, N.
name: Borgato, F.
name: Borghi, S.
name: Borsato, M.
name: Borsuk, J. T.
name: Bouchiba, S. A.
name: Bowcock, T. J. V.
name: Boyer, A.
name: Bozzi, C.
name: Bradley, M. J.
name: Braun, S.
name: Rodriguez, A. Brea
name: Brodzicka, J.
name: Gonzalo, A. Brossa
name: Brown, J.
name: Brundu, D.
name: Buonaura, A.
name: Buonincontri, L.
name: Burke, A. T.
name: Burr, C.
name: Bursche, A.
name: Butkevich, A.
name: Butter, J. S.
name: Buytaert, J.
name: Byczynski, W.
name: Cadeddu, S.
name: Cai, H.
name: Calabrese, R.
name: Calefice, L.
name: Cali, S.
name: Calvi, M.
name: Gomez, M. Calvo
name: Campana, P.
name: Perez, D. H. Campora
name: Quezada, A. F. Campoverde
name: Capelli, S.
name: Capriotti, L.
name: Carbone, A.
name: Cardinale, R.
name: Cardini, A.
name: Carniti, P.
name: Carus, L.
name: Vidal, A. Casais
name: Caspary, R.
name: Casse, G.
name: Cattaneo, M.
name: Cavallero, G.
name: Cavallini, V.
name: Celani, S.
name: Cerasoli, J.
name: Cervenkov, D.
name: Chadwick, A. J.
name: Chahrour, I.
name: Chapman, M. G.
name: Charles, M.
name: Charpentier, Ph.
name: Barajas, C. A. Chavez
name: Chefdeville, M.
name: Chen, C.
name: Chen, S.
name: Chernov, A.
name: Chernyshenko, S.
name: Chobanova, V.
name: Cholak, S.
name: Chrzaszcz, M.
name: Chubykin, A.
name: Chulikov, V.
name: Ciambrone, P.
name: Cicala, M. F.
name: Vidal, X. Cid
name: Ciezarek, G.
name: Cifra, P.
name: Ciullo, G.
name: Clarke, P. E. L.
name: Clemencic, M.
name: Cliff, H. V.
name: Closier, J.
name: Cobbledick, J. L.
name: Coco, V.
name: Cogan, J.
name: Cogneras, E.
name: Cojocariu, L.
name: Collins, P.
name: Colombo, T.
name: Congedo, L.
name: Contu, A.
name: Cooke, N.
name: Corredoira, I.
name: Corti, G.
name: Couturier, B.
name: Craik, D. C.
name: Torres, M. Cruz
name: Currie, R.
name: Da Silva, C. L.
name: Dadabaev, S.
name: Dai, L.
name: Dai, X.
name: Dall'Occo, E.
name: Dalseno, J.
name: D'Ambrosio, C.
name: Daniel, J.
name: Danilina, A.
name: d'Argent, P.
name: Davies, J. E.
name: Davis, A.
name: Francisco, O. De Aguiar
name: de Boer, J.
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name: De Capua, S.
name: De Cian, M.
name: Da Graca, U. De Freitas Carneiro
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name: De Miranda, J. M.
name: De Paula, L.
name: De Serio, M.
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name: De Simone, P.
name: De Vellis, F.
name: de Vries, J. A.
name: Dean, C. T.
name: Debernardis, F.
name: Decamp, D.
name: Dedu, V.
name: Del Buono, L.
name: Delaney, B.
name: Dembinski, H. -P.
name: Denysenko, V.
name: Deschamps, O.
name: Dettori, F.
name: Dey, B.
name: Di Nezza, P.
name: Diachkov, I.
name: Didenko, S.
name: Maronas, L. Dieste
name: Ding, S.
name: Dobishuk, V.
name: Dolmatov, A.
name: Dong, C.
name: Donohoe, A. M.
name: Dordei, F.
name: Reis, A. C. dos
name: Douglas, L.
name: Downes, A. G.
name: Duda, P.
name: Dudek, M. W.
name: Dufour, L.
name: Duk, V.
name: Durante, P.
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name: Durham, J. M.
name: Dutta, D.
name: Dziurda, A.
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name: Faria, M.
name: Farry, S.
name: Fazzini, D.
name: Felkowski, L.
name: Feo, M.
name: Gomez, M. Fernandez
name: Fernez, A. D.
name: Ferrari, F.
name: Lopes, L. Ferreira
name: Rodrigues, F. Ferreira
name: Sole, S. Ferreres
name: Ferrillo, M.
name: Ferro-Luzzi, M.
name: Filippov, S.
name: Fini, R. A.
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Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: A search for rare $B \rightarrow D μ^+ μ^-$ decays is performed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb$^{-1}$. No significant signals are observed in the non-resonant $μ^+μ^-$ modes, and upper limits of $\mathcal{B}(B^0 \rightarrow \overline{D}^0 μ^+ μ^-) &lt; 5.1 \times 10^{-8}$, $\mathcal{B}(B^+ \rightarrow D_s^+ μ^+ μ^-) &lt; 3.2 \times 10^{-8}$, $\mathcal{B}(B_s^0 \rightarrow \overline{D}^0 μ^+ μ^-) &lt; 1.6 \times 10^{-7}$ and $f_c/f_u \cdot \mathcal{B}(B_c^+ \rightarrow D_s^+ μ^+ μ^-) &lt; 9.6 \times 10^{-8}$ are set at the 95\% confidence level, where $f_c$ and $f_u$ are the fragmentation fractions of a $B$ meson with a $c$ and $u$ quark respectively in proton-proton collisions. Each result is either the first such measurement or an improvement by three orders of magnitude on an existing limit. Separate upper limits are calculated when the muon pair originates from a $J/ψ\rightarrow μ^+ μ^-$ decay. The branching fraction of $B_c^+ \rightarrow D_s^+ J/ψ$ multiplied by the fragmentation-fraction ratio is measured to be $f_c/f_u \cdot \mathcal{B}(B_c^+ \rightarrow D_s^+ J/ψ) = (1.63 \pm 0.15 \pm 0.13) \times 10^{-5}$, where the first uncertainty is statistical and the second systematic.
description: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-048.html (LHCb public pages)