We present the observation of the decay B(0) -> chi(c0)K(*0) as well as evidence of B(+) -> chi(c0)K(*+), with an 8.9 and a 3.6 standard deviation significance, respectively, using a data sample of 454 X 10(6) Y(4S) -> B (B) over bar decays collected with the BABAR detector at the PEP-II B meson factory located at the Stanford Linear Accelerator Center (SLAC). The measured branching fractions are B(B(0) -> chi(c0)K(*0)) = (1.7 +/- 0.3 +/- 0.2) x 10(-4) and B(B(+) -> chi(c0)K(*+)) = (1.4 +/- 0.5 +/- 0.2) x 10(-4), where the first quoted errors are statistical and the second are systematic. We obtain a branching fraction upper limit of B(B(+) -> chi(c0)K(*+)) < 2.1 x 10(-4) at the 90% confidence level.
Titolo: | Observation of B(0) -> chi(c0)K*(0) and evidence for B(+) -> chi(c0)K*(+) RID C-5223-2009 | |
Autori: | ||
Data di pubblicazione: | 2008 | |
Rivista: | ||
Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevD.78.091101 | |
Handle: | http://hdl.handle.net/11384/5189 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |