Measurement of CP observables in B± → D(⁎)K± and B± → D(⁎)π± decays
- Aaij, R.
- Adeva, B.
- Ajaltouni, Z.
- Akar, S.
- Alessio, F.
- Alexander, M.
- Alfonso Albero, A.
- 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.
- 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.
- Baker, S.
- Balagura, V.
- Baldini, W.
- Baranov, A.
- Barlow, R. J.
- Barschel, C.
- Barsuk, S.
- Carvalho Akiba, K.
- Ferro-Luzzi, M.
- Ketel, T.
- Merk, M.
- Raven, G.
- Schiller, M.
- Syropoulos, V.
- Tolk, S.
- Tsopelas, P.
- Tuning, N.
DOIAbstract
Measurements of CP observables in B±→D(⁎)K± and B±→D(⁎)π± decays are presented, where D(⁎) indicates a neutral D or D⁎ meson that is an admixture of D(⁎)0 and D¯(⁎)0 states. Decays of the D⁎ meson to the Dπ0 and Dγ final states are partially reconstructed without inclusion of the neutral pion or photon, resulting in distinctive shapes in the B candidate invariant mass distribution. Decays of the D meson are fully reconstructed in the K±π∓, K+K− and π+π− final states. The analysis uses a sample of charged B mesons produced in pp collisions collected by the LHCb experiment, corresponding to an integrated luminosity of 2.0, 1.0 and 2.0 fb−1 taken at centre-of-mass energies of s=7, 8 and 13 TeV, respectively. The study of B±→D⁎K± and B±→D⁎π± de...
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