Measurement of the polarization in the decay B → J/ψK*

H. Albrecht, T. Hamacher, R. P. Hofmann, T. Kirchhoff, R. Mankel, A. Nau, S. Nowak, D. Reßing, H. Schröder, H. D. Schulz, M. Walter, R. Wurth, C. Hast, H. Kapitza, H. Kolanoski, A. Kosche, A. Lange, A. Lindner, M. Schieber, T. SiegmundB. Spaan, H. Thurn, D. Töpfer, D. Wegener, P. Eckstein, M. Schmidtler, M. Schramm, K. R. Schubert, R. Schwierz, R. Waldi, K. Reim, H. Wegener, R. Eckmann, H. Kuipers, O. Mai, R. Mundt, T. Oest, R. Reiner, W. Schmidt-Parzefall, J. Stiewe, S. Werner, K. Ehret, W. Hofmann, A. Hüpper, K. T. Knöpfle, J. Spengler, P. Krieger, D. B. MacFarlane, J. D. Prentice, P. R.B. Saull, K. Tzamariudaki, R. G. Van de Water, T. S. Yoon, C. Frankl, M. Schneider, S. Weseler, G. Kernel, P. Križan, E. Križnič, T. Podobnik, T. Živko, V. Balagura, S. Barsuk, I. Belyaev, R. Chistov, M. Danilov, A. Droutskoy, L. Gershtein, Yu Gershtein, A. Golutvin, I. Korolko, G. Kostina, D. Litvintsev, P. Pakhlov, S. Semenov, A. Snizhko, I. Tichomirov, Yu Zaitsev

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Abstract

Polarization in the exclusive decay B → J/ψK* was measured using the ARGUS detector at the e+e- storage ring DORIS II. The ratio of the transverse to the total decay width was found to be ΓT/Γ = 0.03±0.16±0.15. This measurement demonstrates that the B0 → J/ψK*0 decay channel can be effectively used for CP violation studies.

Original languageEnglish (US)
Pages (from-to)217-220
Number of pages4
JournalPhysics Letters B
Volume340
Issue number3
DOIs
StatePublished - Dec 8 1994

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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