Analysis of Neutral (Formula Presented)-Meson Decays into Two Muons

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Aaij, R, Abellán Beteta, C, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S et al (show 90 more authors) , Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alkhazov, G, Alvarez Cartelle, P, Amato, S, Amhis, Y, An, L, Anderlini, L, Andreianov, A, Andreotti, M, Archilli, F ORCID: 0000-0002-1779-6813, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, JJ, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista Leite, J, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, Bassi, G, Batsukh, B, Battig, A, Bay, A, Becker, M, Bedeschi, F, Bediaga, I, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belov, I, Belyaev, I, Bencivenni, G, Ben-Haim, E, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, HC, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, I, Bhasin, S, Bhom, J, Bian, L, Bieker, MS, Bifani, S, Billoir, P, Birch, M, Bishop, FCR, Bitadze, A, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, JA, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, JT, Bouchiba, SA, Bowcock, TJV ORCID: 0000-0002-3505-6915, Boyer, A, Bozzi, C, Bradley, MJ and Braun, S (2022) Analysis of Neutral (Formula Presented)-Meson Decays into Two Muons Physical Review Letters, 128 (4). 041801-. ISSN 0031-9007, 1079-7114

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Abstract

Branching fraction and effective lifetime measurements of the rare decay Formula Presented and searches for the decays Formula Presented and Formula Presented are reported using proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a luminosity of Formula Presented. The branching fraction Formula Presented and the effective lifetime Formula Presented are measured, where the first uncertainty is statistical and the second systematic. No significant signal for Formula Presented and Formula Presented decays is found and upper limits Formula Presented and Formula Presented at the 95% C.L. are determined, where the latter is limited to the range Formula Presented. The results are in agreement with the standard model expectations.

Item Type:	Article
Additional Information:	All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-007.html (LHCb public pages)
Uncontrolled Keywords:	LHCb Collaboration
Divisions:	Faculty of Science & Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	12 May 2022 14:38
Last Modified:	22 Jan 2026 08:29
DOI:	10.1103/PhysRevLett.128.041801
Open Access URL:	https://journals.aps.org/prl/abstract/10.1103/Phys...
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3154686
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