Measurements of Branching Fractions and Decay Amplitudes in B-> J/ψK^* decays
| dc.creator | Belle Collaboration | |
| dc.creator | Abe, K. | |
| dc.date | 2002-05-10 | |
| dc.date | 2002-05-15 | |
| dc.date.accessioned | 2026-07-07T12:01:46Z | |
| dc.date.available | 2026-07-07T12:01:46Z | |
| dc.description | The branching fractions and the decay amplitudes of B -> J/psi K^* decays are measured in a 29.4/fb data sample collected with the Belle detector at the KEKB electron-positron collider. The decay amplitudes of helicity states of the J/psi K^* system are determined from the full angular distribution of the final state particles in the transversity basis. The branching fractions are measured to be (1.29\pm0.05\pm0.13) \times 10^{-3} for neutral mesons and (1.28\pm0.07\pm0.14) \times 10^{-3} for charged mesons. The measured longitudinal and transverse (perpendicular to the transversity plane) amplitudes are |A_0|^2 = 0.62\pm0.02\pm0.03 and |A_{\perp}|^2 = 0.19\pm0.02\pm0.03, respectively. The value of |A_{\perp}|^2 shows that the CP even component dominates in the B^0 \to J/ψK^{*0}(K_Sπ^0) decay. | |
| dc.description | 17 pages, 3 figures, 5 tables, to appear in Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0205021 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0205021 | |
| dc.identifier | Phys.Lett.B538:11-20,2002 | |
| dc.identifier | doi:10.1016/S0370-2693(02)01969-X | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207206 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurements of Branching Fractions and Decay Amplitudes in B-> J/ψK^* decays | |
| dc.type | text |