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EnglishWe 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: | |
| Abstract: | 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. |
| Handle: | http://hdl.handle.net/11384/5189 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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