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

Measurement of time-dependent CP-violating asymmetries in B0→Ks0Ks0Ks0 decay

Sumisawa K., Ushiroda Y., Hazumi M., Abe K., Abe K., Adachi I., Aihara H., Asano Y., Aulchenko V., Aushev T., Bakich A. M., 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 Y., Chuvikov A., Cole S., Dalseno J., Danilov M., Dash M., 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., Higuchi T., Hokuue T., Hoshi Y., Hou S., Hou W. S., Hsiung Y. B., Iijima T., Imoto A., Inami K., Ishikawa A., Ishino H., Itoh R., Iwasaki M., Iwasaki Y., Kang J. H., Kang J. S., Kataoka S. U., Katayama N., Kawai H., Kawasaki T., Khan H. R., Kichimi H., Kim H. J., Kim H. O., Kim S. K., Kim S. M., Kinoshita K., Korpar S., Križan P., Krokovny P., Kulasiri R., Kumar S., Kuo C. C., Kusaka A., Kuzmin A., Kwon Y. J., Lange J. S., Leder G., Lesiak T., Lin S. W., Mandl F., Marlow D., Matsumoto T., Matyja A., Mitaroff W., Miyabayashi K., Miyake H.

We present a measurement of CP-violation parameters in the B0→KS0KS0KS0 decay based on a sample of 275×106 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 the decay B0→KS0KS0KS0, and the flavor of the accompanying B meson is identified from its decay products. CP-violation parameters are obtained from the asymmetry in the distributions of the proper-time interval between the two B decays: S=+1.26±0.68(stat)±0.20(syst) and A=+0.54±0. 34(stat)±0.09(syst). © 2005 The American Physical Society.