Observation of B-s(0) -> K* (+/-) K -/+ and evidence for B-s(0) -> K*(-) pi(+) decays
- Aaij, R.
- Adeva, B.
- Adinolfi, M.
- Affolder, A.
- 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.
- 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
Measurements of the branching fractions of B-s(0) -> K*K-+/-(-/+) and B-s(0) -> K*(+/-) pi(-/+) decays are performed using a data sample corresponding to 1.0 fb(-1) of protonproton collision data collected with the LHCb detector at a centre-of- mass energy of 7 TeV, where the K*(+/-) mesons are reconstructed in the K-s(0) pi(+/-) final state. The first observation of the B-s(0) -> K*(+/-) K--/+ decay and the first evidence for the B-s(0) -> K*(-) pi(+) decay are reported with branching fractionsB(B-s(0) -> K*K-+/-(-/+)) = (12.7 +/- 1.9 +/- 1.9) x 10(-6) , B(B-s(0) -> K*(-) pi(+)) = (3.3 +/- 1.1 +/- 0.5) x 10(-6) ,where the first uncertainties are statistical and the second are systematic. In addition, an upper limit of B(B...
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