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Measurement of time-dependent CP-violating asymmetries in B0 --> K(s)0K(s)0K(s)0 decay |
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| Authors: | 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 Bracko 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 Gorisek 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 |
| Institution: | Osaka University, Osaka. |
| Abstract: | We present a measurement of CP-violation parameters in the B0 --> K(s)0K(s)0K(s)0 decay based on a sample of 275 x 10(6) BB pairs collected at the upsilon(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 --> K(s)0K(s)0K(s)0, 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 symbol: see text] = +0.54 +/- 0.34(stat) +/- 0.09(syst). |
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