First study of the CP-violating phase and decay-width difference in $B_s^0\toψ(2S)ϕ$ decays
Creators: name: LHCb Collaboration
name: Aaij, R.
name: Adeva, B.
name: Adinolfi, M.
name: Ajaltouni, Z.
name: Akar, S.
name: Albrecht, J.
name: Alessio, F.
name: Alexander, M.
name: Ali, S.
name: Alkhazov, G.
name: Cartelle, P. Alvarez
name: Alves, A. A.
name: Amato, S.
name: Amerio, S.
name: Amhis, Y.
name: An, L.
name: Anderlini, L.
name: Andreassi, G.
name: Andreotti, M.
name: Andrews, J. E.
name: Appleby, R. B.
name: Gutierrez, O. Aquines
name: Archilli, F.
name: d'Argent, P.
name: Romeu, J. Arnau
name: Artamonov, A.
name: Artuso, M.
name: Aslanides, E.
name: Auriemma, G.
name: Baalouch, M.
name: Babuschkin, I.
name: Bachmann, S.
name: Back, J. J.
name: Badalov, A.
name: Baesso, C.
name: Baker, S.
name: Baldini, W.
name: Barlow, R. J.
name: Barschel, C.
name: Barsuk, S.
name: Barter, W.
name: Batozskaya, V.
name: Batsukh, B.
name: Battista, V.
name: Bay, A.
name: Beaucourt, L.
name: Beddow, J.
name: Bedeschi, F.
name: Bediaga, I.
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name: Bellee, V.
name: Belloli, N.
name: Belous, K.
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name: Ben-Haim, E.
name: Bencivenni, G.
name: Benson, S.
name: Benton, J.
name: Berezhnoy, A.
name: Bernet, R.
name: Bertolin, A.
name: Betti, F.
name: Bettler, M. -O.
name: van Beuzekom, M.
name: Bezshyiko, I.
name: Bifani, S.
name: Billoir, P.
name: Bird, T.
name: Birnkraut, A.
name: Bitadze, A.
name: Bizzeti, A.
name: Blake, T.
name: Blanc, F.
name: Blouw, J.
name: Blusk, S.
name: Bocci, V.
name: Boettcher, T.
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name: Bondar, N.
name: Bonivento, W.
name: Borgheresi, A.
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name: Borsato, M.
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name: Boubdir, M.
name: Bowcock, T. J. V.
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name: Braun, S.
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name: Buchanan, E.
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name: Bursche, A.
name: Buytaert, J.
name: Cadeddu, S.
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name: Calvi, M.
name: Gomez, M. Calvo
name: Camboni, A.
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name: Perez, D. Campora
name: Perez, D. H. Campora
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name: Charpentier, Ph.
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name: Chefdeville, M.
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name: Chrzaszcz, M.
name: Vidal, X. Cid
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name: Yushchenko, O.
name: Zangoli, M.
name: Zarebski, K. A.
name: Zavertyaev, M.
name: Zhang, L.
name: Zhang, Y.
name: Zhang, Y.
name: Zhelezov, A.
name: Zheng, Y.
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name: Zucchelli, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: A time-dependent angular analysis of $B_s^0\toψ(2S)ϕ$ decays is performed using data recorded by the LHCb experiment. The data set corresponds to an integrated luminosity of 3.0\invfb collected during Run 1 of the LHC. The CP-violating phase and decay-width difference of the $B_s^0$ system are measured to be $ϕ_s = 0.23^{+0.29}_{-0.28} \pm 0.02$ rad and $ΔΓ_s = 0.066^{+0.041}_{-0.044} \pm 0.007$ ps$^{-1}$, respectively, where the first uncertainty is statistical and the second systematic. This is the first time that $ϕ_s$ and $ΔΓ_s$ have been measured in a decay containing the $ψ(2S)$ resonance.
description: All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2016-027.html