Measurement of the Bs0→J/ψη lifetime

Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alves, A. A.; Amato, S.; Amerio, S.; Amhis, Y.; An, L.; Anderlini, L.; Andreassi, G.; Andreotti, M.; Andrews, J. E.; Appleby, R. B.; Aquines Gutierrez, O.; Archilli, F.; d'Argent, P.; Arnau Romeu, J.; Artamonov, A.; Artuso, M.; Aslanides, E.; Auriemma, G.; Baalouch, M.; Babuschkin, I.; Bachmann, S.; Back, J. J.; Badalov, A.; Baesso, C.; Baldini, W.; Barlow, R. J.; Barschel, C.; Barsuk, S.; Barter, W.; Batozskaya, V.; Batsukh, B.; Battista, V.; Bay, A.; Beaucourt, L.; Beddow, J.; Bedeschi, F.; Bediaga, I.; Bel, L. 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doi:10.1016/j.physletb.2016.10.006

Title: Measurement of the $B_{s}^{0} \to J / ψ η$ lifetime

Journal Article · Tue Oct 11 00:00:00 EDT 2016 · Physics Letters. B

DOI:https://doi.org/10.1016/j.physletb.2016.10.006· OSTI ID:1525180

Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alves, A. A.; Amato, S.; Amerio, S.; Amhis, Y.; An, L.; Anderlini, L.; Andreassi, G.; Andreotti, M.; Andrews, J. E. more »

Using a data set corresponding to an integrated luminosity of 3 fb^–1, collected by the LHCb experiment in pp collisions at centre-of-mass energies of 7 and 8 TeV, the effective lifetime in the $B_{s}^{0} \to J / ψ η$ decay mode, τ_eff, is measured to be τ_eff=1.479±0.034 (stat)±0.011 (syst) ps. Assuming CP conservation, τ_eff corresponds to the lifetime of the light B$$^{0}_{s}$$ mass eigenstate. This is the first measurement of the effective lifetime in this decay mode.

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Research Organization:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Contributing Organization:: LHCb Collaboration

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1525180

Journal Information:: Physics Letters. B, Vol. 762, Issue C; ISSN 0370-2693

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 7 works

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