Measurement of CP observables in B ± → DK decays using two- and four-body D final states

R. Aaij, B. Adeva, Z. Ajaltouni, S. Akar, F. Alessio, M. Alexander, A. Alfonso Albero, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, G. Andreassi, M. Andreotti, J. E. Andrews, R. B. ApplebyF. Archilli, P. d’Argent, J. Arnau Romeu, A. Artamonov, M. Artuso, E. Aslanides, M. Atzeni, G. Auriemma, M. Baalouch, I. Babuschkin, S. Bachmann, J. J. Back, A. Badalov, C. Baesso, S. Baker, V. Balagura, K. Carvalho Akiba, M. Ferro-Luzzi, T. Ketel, M. Merk, C. J.G. Onderwater, G. Raven, M. Schiller, N. Serra, B. Storaci, V. Syropoulos, J. van Tilburg, S. Tolk, P. Tsopelas, N. Tuning, The LHCb collaboration

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Abstract

Measurements of CP observables in B± → DK decays are presented, where D denotes a superposition of D0 and D¯ 0 meson states. Decays of the D meson to Kπ+, KK+, ππ+, Kπ+ππ+ and ππ+ππ+ are used and the K meson is reconstructed in the KS 0π± final state. This analysis uses a data sample of pp collisions collected with the LHCb experiment, corresponding to integrated luminosities of 1 fb−1, 2 fb−1 and 1.8 fb−1 at centre-of-mass energies s=7 TeV, 8 TeV and 13 TeV, respectively. The sensitivity of the results to the CKM angle γ is discussed.

Original languageEnglish
Article number156
JournalJournal of High Energy Physics
Volume2017
Issue number11
DOIs
Publication statusPublished - 1 Nov 2017

Keywords

  • B physics
  • CKM angle gamma
  • CP violation
  • Hadron-Hadron scattering (experiments)

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