BABAR Publications

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PUB-03/016 Measurement of wrong-flavor to right-flavor amplitude ratio in B->J/psi K*
Doc Type Journal Papers
Record Created May 21, 2003
SLAC-PUB
SLAC-PUB-10394  No citations
Preprint # hep-ex/0404005
Comments - received different hep-ex number (0404006 -> 0404005)
Abstract
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We have measured the time-dependent decay rate for the process B ->
J/psi K*0(892) in a sample of about 88 million Upsilon(4S) ->
BBbar decays collected with the BaBar detector at the PEP-II
asymmetric-energy B Factory at SLAC. In this sample we study
flavor-tagged events in which one neutral B meson is reconstructed in
the J/psi K*0 or J/psi K*0bar final state. We measure
the coefficients of the cosine and sine terms in the time-dependent
asymmetries for J/psi K*0 and J/psi K*0bar, find them to
be consistent with the Standard Model expectations, and set upper limits
at 90% C.L. on the decay amplitude ratios |A (B0bar -> J/psi K*0)|/|A
(B0 -> J/psi K*0)| < 0.26 and |A (B0 -> J/psi K*0bar)|/|A (B0bar ->
J/psi K*0bar)| < 0.32. For a single ratio of wrong-flavor to favored
amplitudes for B0 and B0bar combined, we obtain an upper limit of 0.25 at
90% C.L.   





Revisions and Files 1 revised May 21, 2003
File Date
Thumbnails
File Name File Type File Format File Size (Kb) Comments
03-APR-2004 abstract.tex Abstract txt 0.85
03-APR-2004 fig01.eps Figure or plot eps 46.41 m_ES plot
03-APR-2004 fig02.eps Figure or plot eps 38.37 Delta t and asymmetry plot
03-APR-2004 slac-pub-10394.ps Paper (journal paper or conference submission by BABAR Collaboration) ps.gz 431.82
Submitted ToPhysical Review Letters
Date SubmittedApril 3, 2004
Journal Year2004
Journal Volume93
Journal Article/Page Range081801