The time-dependent decay rate for the process B→J/ψK *(892) in γ(4S)→BB̄ decays detected by BABAR detector, was investigated. The flavor-tagged events, where one neutral B meson was reconstructed in the J/ψK*0 or J/ψK̄ *0 final state, were observed. The coefficients of cosine and sine terms in time-dependent asymmetries were also measured. The results show that for a single ratio of wrong-flavor to favored amplitudes for B0 and ̄0 combined, an upper limit of 0.25 at 90% confidence level (C.L.) was obtained.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J., Hicheur, A., et al. (2004). Bound on the ratio of decay amplitudes for B̄0 → J/ψK*0 and B0 → J/ψK*0. PHYSICAL REVIEW LETTERS, 93(8), 1-7 [10.1103/PhysRevLett.93.081801].

Bound on the ratio of decay amplitudes for B̄0 → J/ψK*0 and B0 → J/ψK*0

CARPINELLI, Massimo;
2004

Abstract

The time-dependent decay rate for the process B→J/ψK *(892) in γ(4S)→BB̄ decays detected by BABAR detector, was investigated. The flavor-tagged events, where one neutral B meson was reconstructed in the J/ψK*0 or J/ψK̄ *0 final state, were observed. The coefficients of cosine and sine terms in time-dependent asymmetries were also measured. The results show that for a single ratio of wrong-flavor to favored amplitudes for B0 and ̄0 combined, an upper limit of 0.25 at 90% confidence level (C.L.) was obtained.
Articolo in rivista - Articolo scientifico
Algorithms; Approximation theory; Calorimeters; Charged particles; Integration; Magnetic fields; Mathematical models; Oscillations; Polarization; Probability; Radiation detectors; Resonance; Solenoids; Vectors;
English
2004
93
8
1
7
081801
none
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J., Hicheur, A., et al. (2004). Bound on the ratio of decay amplitudes for B̄0 → J/ψK*0 and B0 → J/ψK*0. PHYSICAL REVIEW LETTERS, 93(8), 1-7 [10.1103/PhysRevLett.93.081801].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389928
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