A measurement of ∆Γs

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Aaij, R, Abdelmotteleb, ASW, Abellan Beteta, C, Abudinén, F, Ackernley, T, Adeva, B, Adinolfi, M, Adlarson, P, Afsharnia, H, Agapopoulou, C et al (show 90 more authors) , Aidala, CA, Ajaltouni, Z, Akar, S, Akiba, K, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alvarez Cartelle, P, Amalric, R, Amato, S, Amey, JL, Amhis, Y, An, L, Anderlini, L, Andersson, M, Andreianov, A, Andreola, P, Andreotti, M, Andreou, D, Anelli, AA, Ao, D, Archilli, F, Arguedas Cuendis, S, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Audurier, B, Bacher, D, Bachiller Perea, I, Bachmann, S, Bachmayer, M, Back, JJ, Bailly-reyre, A, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista de Souza Leite, J, Barbetti, M, Barbosa, IR, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, Bassi, G, Batsukh, B, Battig, A, Bay, A, Beck, A, Becker, M, Bedeschi, F, Bediaga, IB, Beiter, A, Belin, S, Bellee, V, Belous, K, Belov, I, Belyaev, I, Benane, G, Bencivenni, G, Ben-Haim, E, Berezhnoy, A, Bernet, R, Bernet Andres, S, Bernstein, HC, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bex, J, Bezshyiko, I, Bhom, J, Bieker, MS, Biesuz, NV, Billoir, P, Biolchini, A, Birch, M, Bishop, FCR, Bitadze, A, Bizzeti, A, Blago, MP, Blake, T, Blanc, F, Blank, JE and Blusk, S (2024) A measurement of ∆Γs Journal of High Energy Physics, 2024 (5). 253-. ISSN 1126-6708, 1029-8479

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Abstract

Using a dataset corresponding to 9 fb⁻¹ of integrated luminosity collected with the LHCb detector between 2011 and 2018 in proton-proton collisions, the decay-time distributions of the decay modes B<inf>s</inf> ⁰→J/ψη^′ and B<inf>s</inf> ⁰→J/ψπ⁺π⁻ are studied. The decay-width difference between the light and heavy mass eigenstates of the B<inf>s</inf> ⁰ meson is measured to be ∆Γ<inf>s</inf> = 0.087 ± 0.012 ± 0.009 ps⁻¹, where the first uncertainty is statistical and the second systematic.

Item Type:	Article
Uncontrolled Keywords:	5106 Nuclear and Plasma Physics, 5107 Particle and High Energy Physics, 4902 Mathematical Physics, 49 Mathematical Sciences, 51 Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	02 Sep 2024 07:29
Last Modified:	22 Jan 2026 23:43
DOI:	10.1007/JHEP05(2024)253
Open Access URL:	https://link.springer.com/article/10.1007/JHEP05(2...
Related Websites:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3184182
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