@misc{oai:niigata-u.repo.nii.ac.jp:00004705, author = {Onuki, Yoshiyuki}, month = {Sep}, note = {We present a measurement of decay a measure of decay amplitudes in B+ →J/K+ decays based on a 253 fb-1 data sample collected at the γ(4S) resonance with the Bele detector at the KEKB asymmetric-energy e+e- collider. The data corresponds to 275 milion BB meson from B+ → J/k*+ and the K*+ decay into K*+ →K+π0 and Ksπ+ sub-decay modes. The complex decay amplitudes of three helicity final states of B+ → J/K*+(Ksπ+) are measured by a simulataneous fit to three transversity angles. We have extacted decay amplitudes by full anfular analysis with an improved un-binned maximum likehood fit method. We have determined absolute values of three decay amplitudes and two relative phase reporded in neutral B0→ J/K*+. The breakdown existence in charged B+ →J/K*+ is measured 1.59o. We compared with the decay amplitutes between neutral and charged B → J/K* system. The measured amplitudes between charged plus and minus are consistent within the errors except for B± → J/K*±(K*+ → Ksπ±). The difference is measured 2.39o in opposite charge sign. With the decay amplitudes measured in charged B+ → J/K*+, we extract the triple product correlation parameter which has a sensitivity to the R-party violating beyond the Standard Model. These results are consistent with the Standard Model., 新大博(理)乙第55号, 新大博(理)乙第55号}, title = {Measurement of decay amplitudes and triple product correlations in B +→J /ψ K *+}, year = {2005} }