TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2015
DA  - 2015//
TI  - First observation and measurement of the branching fraction for the decay B-s(0) -> D-s*K-/+(+/-)
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 130
EP  - 16pp
VL  - 06
IS  - 6
PB  - Springer
KW  - Branching fraction
KW  - B physics
KW  - Flavor physics
KW  - Hadron-Hadron Scattering
AB  - The first observation of the B-s(0) -> D-s*(-/+) K-+/- decay is reported using 3.0 fb(-1) of proton-proton collision data collected by the LHCb experiment. The D-s*(-/+) mesons are reconstructed through the decay chain D-s*(-/+) -> gamma D-s(-/+) ((KK +/-)-K--/+pi(-/+)). The branching fraction relative to that for B-s(0) -> D-s*(-)pi(+) decays is measured to be B (B-s(0) -> D-s*K--/+(+/-))/B(B-s(0) -> D-s*(-)pi(+)) = 0.068 +/- 0.005(-0.002)(+0.003), where the first uncertainty is statistical and the second is systematic. Using a recent measurement of B(B-s(0) -> D-s*(-)pi(+)), the absolute branching fraction of B-s(0) -> Ds*K--/+(+/-) is measured as B(B-s(0) -> D*K--/+(+/-)) = (16.3 +/- 1.2(stat)(-0.5)(+0.7)(syst) +/- 4.8(norm)) x 10(-5), where the third uncertainty is due to the uncertainty on the branching fraction of the normalisation channel.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1503.09086
UR  - https://doi.org/10.1007/JHEP06(2015)130
DO  - 10.1007/JHEP06(2015)130
LA  - English
N1  - WOS:000363487700001
ID  - LHCbCollaborationAaij_etal2015
ER  -