@article{068ac36214bf46d58ba1ef4358b45496,
title = "Observation of the decay Bs 0 → ηc ϕ and evidence for Bs 0 → ηc π + π − ",
abstract = "A study of Bs 0 → ηcϕ and Bs 0 → ηcπ+π− decays is performed using pp collision data corresponding to an integrated luminosity of 3.0 fb−1, collected with the LHCb detector in Run 1 of the LHC. The observation of the decay Bs 0 → ηcϕ is reported, where the ηc meson is reconstructed in the pp¯ , K+K−π+π−, π+π−π+π− and K+K−K+K− decay modes and the ϕ(1020) in the K+K− decay mode. The decay Bs 0 → J/ψϕ is used as a normalisation channel. Evidence is also reported for the decay Bs 0 → ηcπ+π−, where the ηc meson is reconstructed in the pp¯ decay mode, using the decay Bs 0 → J/ψπ+π− as a normalisation channel. The measured branching fractions are(Formula Presented.)where in each case the first uncertainty is statistical, the second systematic and the third uncertainty is due to the limited knowledge of the external branching fractions.[Figure not available: see fulltext.].",
keywords = "B physics, Branching fraction, Flavor physics, Hadron-Hadron scattering (experiments)",
author = "{The LHCb collaboration} and R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and F. Archilli and P. d{\textquoteright}Argent and {Arnau Romeu}, J. and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and I. Babuschkin and S. Bachmann and Back, {J. J.} and A. Badalov and C. Baesso and S. Baker and V. Balagura and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and F. Baryshnikov and M. Baszczyk and V. Batozskaya and B. Batsukh and V. Battista and A. Bay and L. Beaucourt and {Calvo Gomez}, M. and X. Vilasis-Cardona",
note = "Publisher Copyright: {\textcopyright} 2017, The Author(s).",
year = "2017",
month = jul,
day = "1",
doi = "10.1007/JHEP07(2017)021",
language = "English",
volume = "2017",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",
number = "7",
}