Measurement of time-dependent CP-violating parameters in B(0)-->K_(S)(0)K_(S)(0) decays.
We report a measurement of the CP-violating parameters in B;{0}-->K_{S}{0}K_{S}{0} decays based on a data sample of 657x10{6} BB[over ] pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e;{+}e{-} collider. In this Letter, one neutral B meson is fully reconstructed in the B;{0}-->K_{S}{0}K_{S}{0} decay mode, and the flavor of the accompanying B meson is identified by its decay products. The CP-violating parameters are measured from the asymmetry in the distributions of the proper-time interval between the two B decays: S_K_{S}{0}K_{S}{0}}=-0.38_{-0.77}{+0.69}(stat)+/-0.09(syst) and A_{K_{S}{0}K_{S}{0}}=-0.38+/-0.38(stat)+/-0.05(syst).
Nakahama
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Y
Department of Physics, University of Tokyo, Tokyo.
Sumisawa
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Adachi
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Bozek
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Bracko
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Browder
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Chang
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Chao
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Chen
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Chen
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Chen
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Cheon
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Chistov
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Dalseno
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Dash
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Drutskoy
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Eidelman
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Gabyshev
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Hayasaka
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Hazumi
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Heffernan
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Hoshi
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Hsiung
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Hyun
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Iijima
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Inami
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Ishikawa
A
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Ishino
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Itoh
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Iwasaki
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Iwasaki
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Kah
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Kaji
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Katayama
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Kawai
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Kawasaki
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Kichimi
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Kinoshita
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Kumar
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Kwon
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Lee
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Lesiak
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Limosani
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Lin
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Liventsev
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Mandl
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McOnie
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Medvedeva
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Mitaroff
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Miyabayashi
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Miyata
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Miyazaki
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Mizuk
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Moloney
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Nakano
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Nakao
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Nakazawa
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Natkaniec
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Nishida
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Nitoh
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Nozaki
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Ogawa
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Ohshima
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Okuno
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Olsen
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Ozaki
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Pakhlov
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Pakhlova
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Park
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Park
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Park
K S
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Pestotnik
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Piilonen
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Sahoo
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Sakai
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Schneider
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Schwanda
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Schwartz
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Seidl
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Sevior
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Shapkin
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Shen
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Shibuya
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Shiu
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Shwartz
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Singh
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Somov
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Stanic
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Staric
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Sumiyoshi
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Tajima
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Takasaki
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Tamura
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Tanaka
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Taylor
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Teramoto
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Tikhomirov
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Trabelsi
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Tsuboyama
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Uehara
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Ueno
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Uglov
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Unno
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Uno
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Ushiroda
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Varner
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Vervink
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Wang
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Wang
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Wang
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Watanabe
Y
Y
Won
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Yamashita
Y
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Yusa
Y
Y
Zhang
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Zupanc
A
A
Zyukova
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O