Measurement of CP asymmetry in B-s(0) -> D-s(-/+) K--/+ decays
- Aaij, R.
- Adeva, B.
- Adinolfi, M.
- Affolder, A.
- Ajaltouni, Z.
- Akar, S.
- Albrecht, J.
- Alessio, F.
- Alexander, M.
- Ali, S.
- Alkhazov, G.
- Cartelle, P. Alvarez
- Alves, A. A.
- Amato, S.
- Amerio, S.
- Amhis, Y.
- An, L.
- Anderlini, L.
- Anderson, J.
- Andreassen, R.
- Andreotti, M.
- Andrews, J. E.
- Appleby, R. B.
- Gutierrez, O. Aquines
- Archilli, F.
- Artamonov, A.
- Artuso, M.
- Aslanides, E.
- Auriemma, G.
- Baalouch, M.
- Bachmann, S.
- Back, J. J.
- Badalov, A.
- Baldini, W.
- Barlow, R. J.
- Barschel, C.
- Barsuk, S.
- Barter, W.
- Batozskaya, V.
- Battista, V.
- Bay, A.
- Beaucourt, L.
- Beddow, J.
- Bedeschi, F.
- Bediaga, I.
- Belogurov, S.
- Belous, K.
- Belyaev, I.
- Onderwater, G.
- Pellegrino, A.
DOIAbstract
We report on measurements of the time-dependent CP violating observables in B-s(0) -> D-s(-/+) K--/+ decays using a dataset corresponding to 1.0 fb(-1) of pp collisions recorded with the LHCb detector. We find the CP violating observables C-f = 0.53 +/- 0.25 +/- 0.04, A(f)(Delta Gamma) = 0.37 +/- 0.42 +/- 0.20, A((f) over bar)(Delta Gamma) = 0.20 +/- 0.41 +/- 0.20, S-f = -1.09 +/- 0.33 +/- 0.08, S-(f) over bar = -0.36 +/- 0.34 +/- 0.08, where the uncertainties are statistical and systematic, respectively. Using these observables together with a recent measurement of the B-s(0) mixing phase -2 beta(s) leads to the first extraction of the CKM angle gamma from B-s(0) -> D-s(-/+) K--/+ decays, finding gamma = (115(-43)(+28))degrees modulo...
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