Measurement of the Ratio of Decay Amplitudes for B0bar -> J/psi K*0 and B0 -> J/psi K*0
- SLAC
We have measured the time-dependent decay rate for the process B {yields} J/{psi} K*{sup 0}(892) in a sample of about 88 million {Upsilon}(4S) {yields} B{bar B} 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*{sup 0} or J/{psi} {bar K}*{sup 0} final state. We measure the coefficients of the cosine and sine terms in the time-dependent asymmetries for J/{psi}K*{sup 0} and J/{psi}{bar K}*{sup 0}, find them to be consistent with the Standard Model expectations, and set upper limits at 90% C.L. on the decay amplitude ratios |A({bar B}{sup 0} {yields} J/{psi}K*{sup 0})|/|A(B{sup 0} {yields} J/{psi}K*{sup 0})| < 0.26 and |A(B{sup 0} {yields} J/{psi}{bar K}*{sup 0})|/|A({bar B}{sup 0} {yields} J/{psi}{bar K}*{sup 0})| < 0.32. For a single ratio of wrong-flavor to favored amplitudes for B{sup 0} and {bar B}{sup 0} combined, we obtain an upper limit of 0.25 at 90% C.L.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515;
- OSTI ID:
- 826853
- Report Number(s):
- SLAC-PUB-10394
- Country of Publication:
- United States
- Language:
- English
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