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ISSN - 00319007, EISSN - 10797114, Physical Review Letters, 2005, vol. 95, p. -

Studies of CP violation in B→J/ψK* decays

Itoh R., Onuki Y., Abe K., Abe K., Adachi I., Aihara H., Asano Y., Aushev T., Bakich A. M., Ban Y., Barberio E., Bay A., Bitenc U., Bizjak I., Blyth S., Bondar A., Bozek A., Bračko M., Brodzicka J., Browder T. E., Chao Y., Chen A., Chen K. F., Chen W. T., Cheon B. G., Chistov R., Choi S. K., Choi Y., Choi Y. K., Chuvikov A., Cole S., Dalseno J., Dash M., Dong L. Y., Drutskoy A., Eidelman S., Enari Y., Fang F., Fratina S., Gabyshev N., Garmash A., Gershon T., Gokhroo G., Golob B., Gorišek A., Haba J., Hara K., Hara T., Hayashii H., Hazumi M., Higuchi T., Hinz L., Hokuue T., Hoshi Y., Hou S., Hou W. S., Hsiung Y. B., Iijima T., Imoto A., Inami K., Ishikawa A., Ishino H., Iwasaki M., Iwasaki Y., Kang J. H., Kang J. S., Kapusta P., Kataoka S. U., Katayama N., Kawai H., Kawasaki T., Khan H. R., Kichimi H., Kim H. J., Kim S. M., Kinoshita K., Korpar S., Križan P., Krokovny P., Kumar S., Kuo C. C., Kusaka A., Kuzmin A., Kwon Y. J., Leder G., Lee S. E., Lesiak T., Li J., Lin S. W., Majumder G., Mandl F., Matsumoto T., Matyja A., Mikami Y., Mitaroff W.

CP violation in B→J/ψK* decays is studied using an angular analysis in a data sample of 253fb-1 recorded with the Belle detector at the KEKB e+e- collider. The flavor separated measurements of the decay amplitudes indicate no evidence for direct CP violation. T-odd CP violation is studied using the asymmetries in triple product correlations, and the results are consistent with the standard model null predictions. The time-dependent angular analysis gives the following values of CP-violating parameters: sin 2 1=0.24±0.31±0.05 and cos 2 1=0.56±0.79±0.11. © 2005 The American Physical Society.