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research article
Observation of the decay B-0 -> eta ' K* (892)(0)
We report a search for charmless hadronic decays of neutral B mesons to eta ' K* (892)(0). The results are based on a 711 fb(-1) data sample that contains 772 x 10(6) B (B) over bar pairs, collected at the gamma(4S) resonance with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider. We observe the decay for the first time with a significance of 5.0 standard deviations and obtain its branching fraction B[B-0 -> eta ' K* (892)(0)] = [2.6 +/- 0.7(stat) +/- 0.2(syst)] x 10(-6). We also measure the CP-violating asymmetry as A(CP) [B-0 -> eta ' K* (892)(0)] = -0.22 +/- 0.29(stat) +/- 0.07(syst).
Type
research article
Web of Science ID
WOS:000344030900001
Authors
Sato, S.
•
Yusa, Y.
•
Mohanty, G. B.
•
Abdesselam, A.
•
Adachi, I.
•
Aihara, H.
•
Al Said, S.
•
Asner, D. M.
•
Aushev, T.
•
Ayad, R.
Corporate authors
Belle Collaboration
Publication date
2014
Publisher
Published in
Volume
90
Issue
7
Article Number
072009
Peer reviewed
REVIEWED
Written at
EPFL
EPFL units
Available on Infoscience
December 30, 2014
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