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Measurement of the Branching Fractions for $B o omega K$ and $B o omega pi$ | | C.H. Wang et al.
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22 Mar 2004 | | Journal: | Phys.Rev. D70 (2004) 012001 | | Subject: | hep-ex | | Affiliation: | Belle Collaboration | | Abstract: | We report improved measurements of branching fractions for charmless hadronic two-body {it B} meson decays containing an $omega$ meson in the final state. The results are based on a data sample of 78 fb$^{-1}$ collected on the $Upsilon(4S)$ resonance by the Belle detector. We measure the branching fractions ${mathcal B}(B^+ o omega K^+) = (6.5^{+1.3}_{-1.2}pm 0.6) imes 10^{-6}$ and ${mathcal B}(B^+ o omega pi^+) = (5.7^{+1.4}_{-1.3}pm 0.6) imes 10^{-6}.$ We give 90% confidence upper limits for ${mathcal B}(B^0 o omega K^0) < 7.6 imes 10^{-6}$ and ${mathcal B}(B^0 o omega pi^0) < 1.9 imes 10^{-6}.$ We also obtain the partial rate asymmetries ${mathcal A}_{CP}=0.06^{+0.21}_{-0.18}pm 0.01$ for $B^pm o omega K^pm$ and ${mathcal A}_{CP}=0.50^{+0.23}_{-0.20}pm 0.02$ for $B^pm o omega pi^pm.$ | | Source: | arXiv, hep-ex/0403033 | | Services: | Forum | Review | PDF | Favorites | |
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