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ISSN - 00319007, EISSN - 10797114, Physical Review Letters, 2004, vol. 93, p. 031802-1

Study of CP violating effects in time dependent B0(B̄ 0) → D(*)∓ π± decays

Sarangi T. R., Abe K., Abe T., Aihara H., Asano Y., Aulchenko V., Aushev T., Bahinipati S., Bakich A. M., Ban Y., Banerjee S., Bitenc U., Bizjak I., Blyth S., Bondar A., Bračko M., Browder T. E., Chang M. C., Chang P., Chen K. F., Cheon B. G., Chistov R., Choi S. K., Choi Y., Chuvikov A., Cole S., Danilov M., Dash M., Dong L. Y., Drutskoy A., Eidelman S., Eiges V., Fratina S., Gabyshev N., Garmash A., Gershon T., Gokhroo G., Haba J., Hara K., Hastings N. C., Hayashii H., Hazumi M., Higuchi T., Hinz L., Hokuue T., Hoshi Y., Hou W. S., Inami K., Ishikawa A., Ishino H., Itoh R., Iwasaki H., Iwasaki M., Kang J. H., Kang J. S., Kapusta P., Kataoka S. U., Kawai H., Kawasaki T., Kichimi H., Kim H. J., Kim H. O., Kim S. K., Kim T. H., Kinoshita K., Korpar S., Križan P., Krokovny P., Kuzmin A., Kwon Y. J., Lange J. S., Leder G., Lee S. H., Lesiak T., Li J., Lin S. W., Liventsev D., MacNaughton J., Mandl F., Marlow D., Matsumoto T., Matyja A., Mikami Y., Mitaroff W., Miyabayashi K., Miyake H., Miyata H., Mohapatra D., Moloney G. R., Nagamine T., Nagasaka Y., Nakadaira T., Nakao M., Nakazawa H., Natkaniec Z.

The measurements of time-dependent decay rates for B 0(B̄0) → D(*)∓π ∓ decays and extraction of CP violation parameters containing φ3 were discussed. It was found that a 140 fb-1 data sample, which contained 152 × 106 BB̄ events, was used in the measurement. Charged leptons, pions and kaons were used to identify the flavor of the accompanying B meson. The results show that |2R D*π sin(2φ1 + φ3)| = 0.060 ± 0.040(stat) ± 0.019(syst) can be obtained.