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ISSN - 15507998, Physical Review D - Particles, Fields, Gravitation and Cosmology, 2007, vol. 76, p. -

Measurements of time-dependent CP violation in B0→ωKS0, f0(980)KS0, KS0π0 and K+K-KS0 decays

Chao Y., Chen K. F., Miyake H., Tajima O., Trabelsi K., Abe K., Abe K., Adachi I., Aihara H., Anipko D., Bakich A. M., Barberio E., Bitenc U., Bizjak I., Blyth S., Bondar A., Bračko M., Browder T. E., Chang M. C., Chang P., Chen A., Chen W. T., Cheon B. G., Chistov R., Choi Y., Choi Y. K., Cole S., Dalseno J., Danilov M., Dash M., Dragic J., Drutskoy A., Eidelman S., Fratina S., Gabyshev N., Golob B., Ha H., Haba J., Hara K., Hara T., Hastings N. C., Hayashii H., Hazumi M., Heffernan D., Higuchi T., Hokuue T., Hoshi Y., Hou W. S., Hsiung Y. B., Iijima T., Ikado K., Inami K., Ishikawa A., Ishino H., Itoh R., Iwasaki M., Iwasaki Y., Kaji H., Kang J. H., Kapusta P., Kawai H., Kawasaki T., Kim H. J., Kim H. O., Kim Y. J., Kinoshita K., Korpar S., Križan P., Krokovny P., Kulasiri R., Kumar R., Kuo C. C., Kuzmin A., Kwon Y. J., Lee M. J., Lesiak T., Limosani A., Lin S. W., Liventsev D., Matsumoto T., McOnie S., Miyabayashi K., Miyata H., Miyazaki Y., Mizuk R., Mohapatra D., Moloney G. R., Nakahama Y., Nakano E., Nakao M., Natkaniec Z., Nishida S., Nitoh O., Ogawa S., Okuno S.

We present measurements of time-dependent CP asymmetries in B0→ωKS0, f0(980)KS0, KS0π0 and K+K-KS0 decays based on a sample of 535×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider. One neutral B meson is fully reconstructed in one of the specified decay channels, and the flavor of the accompanying B meson is identified from its decay products. CP-violation parameters for each of the decay modes are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays. © 2007 The American Physical Society.