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Search for B0 -> J/psi D0bar and B+ -> J/psi D0bar pi+ decays | | L.M.Zhang
; Z.P.Zhang
; et al
; | | Date: |
22 Mar 2005 | | Journal: | Phys.Rev. D71 (2005) 091107 | | Subject: | hep-ex | | Affiliation: | for the Belle Collaboration | | Abstract: | We report the results of a search for the decay modes B0 -> J/psi D0bar and B+ -> J/psi D0bar pi+. The analysis is based on 140 $
m fb^{-1}$ of data accumulated by the Belle detector at the KEKB asymmetric-energy $e^{+} e^{-}$ collider. No significant signals are observed and we determine the branching fraction upper limits B(B0 -> J/psi D0bar) < 2.0 10^{-5} and B(B+ -> J/psi D0bar pi+) < 2.5 10^{-5} at 90% confidence level. These results rule out the explanation of the excess in the low momentum region of the inclusive J/psi spectrum as intrinsic charm content in the B meson. The branching fractions of the corresponding non-resonant decay channels are also reported. | | Source: | arXiv, hep-ex/0503037 | | Services: | Forum | Review | PDF | Favorites | |
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