Observation of time-dependent CP violation in B0→η′K0 decays and improved measurements of CP asymmetries in B0→φK0, KS0KS0KS0 and B0→J/ψK0 decays

被引：116

作者：

Chen, K. -F. ^{[1
]}

Hara, K.

Hazumi, M.

Higuchi, T.

Miyabayashi, K.

Nakahama, Y.

Sumisawa, K.

Tajima, O.

Ushiroda, Y.

Yusa, Y.

Abe, K.

Adachi, I.

Aihara, H.

Anipko, D.

Arinstein, K.

Aulchenko, V.

Aushev, T.

Aziz, T.

Bakich, A. M.

Balagura, V.

Banerjee, S.

Barberio, E.

Barbero, M.

Bay, A.

Belous, K.

Bitenc, U.

Bizjak, I.

Blyth, S.

Bondar, A.

Bozek, A.

Bracko, M.

Brodzicka, J.

Browder, T. E.

Chang, P.

Chao, Y.

Chen, A.

Chen, W. T.

Cheon, B. G.

Chistov, R.

Choi, S. -K.

Choi, Y.

Choi, Y. K.

Chuvikov, A.

Cole, S.

Dalseno, J.

Danilov, M.

Dash, M.

Dragic, J.

Drutskoy, A.

机构：

[1] Natl Taiwan Univ, Dept Phys, Taipei 10764, Taiwan

[2] Natl United Univ, Miaoli, Taiwan

[3] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland

[4] Nippon Dent Univ, Niigata, Japan

[5] Niigata Univ, Niigata, Japan

[6] Osaka City Univ, Osaka 558, Japan

[7] Osaka Univ, Osaka, Japan

[8] Panjab Univ, Chandigarh 160014, India

[9] Peking Univ, Beijing 100871, Peoples R China

[10] Princeton Univ, Princeton, NJ 08544 USA

[11] Brookhaven Natl Lab, Res Ctr, RIKEN, Upton, NY 11973 USA

[12] Saga Univ, Saga 840, Japan

[13] Univ Sci & Technol China, Hefei 230026, Peoples R China

[14] Seoul Natl Univ, Seoul, South Korea

[15] Shinshu Univ, Nagano, Japan

[16] Sungkyunkwan Univ, Suwon 440746, South Korea

[17] Univ Sydney, Sydney, NSW 2006, Australia

[18] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[19] Toho Univ, Funabashi, Chiba 274, Japan

[20] Tohoku Gakuin Univ, Tagajo, Miyagi 985, Japan

[21] Tohoku Univ, Sendai, Miyagi 980, Japan

[22] Univ Tokyo, Dept Phys, Tokyo, Japan

[23] Tokyo Inst Technol, Tokyo, Japan

[24] Tokyo Metropolitan Univ, Tokyo 158, Japan

[25] Tokyo Univ Agr & Technol, Tokyo, Japan

[26] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA

[27] Yonsei Univ, Seoul, South Korea

[28] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[29] Chiba Univ, Chiba, Japan

[30] Chonnam Natl Univ, Kwangju 500757, South Korea

[31] Univ Cincinnati, Cincinnati, OH 45221 USA

[32] Grad Univ Adv Studies, Hayama, Japan

[33] Gyeongsang Natl Univ, Chinju, South Korea

[34] Univ Hawaii, Honolulu, HI 96822 USA

[35] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki, Japan

[36] Hiroshima Inst Technol, Hiroshima, Japan

[37] Univ Illinois, Urbana, IL 61801 USA

[38] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[39] Inst High Energy Phys, Vienna, Austria

[40] Inst High Energy Phys, Protvino, Russia

[41] Inst Theoret & Expt Phys, Moscow 117259, Russia

[42] Jozef Stefan Inst, Ljubljana, Slovenia

[43] Kanagawa Univ, Yokohama, Kanagawa, Japan

[44] Korea Univ, Seoul 136701, South Korea

[45] Kyungpook Natl Univ, Taegu 702701, South Korea

[46] Swiss Fed Inst Technol, EPFL, Lausanne, Switzerland

[47] Univ Ljubljana, Ljubljana, Slovenia

[48] Univ Maribor, SLO-2000 Maribor, Slovenia

[49] Univ Melbourne, Melbourne, Vic, Australia

[50] Nagoya Univ, Nagoya, Aichi, Japan

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.98.031802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present improved measurements of CP-violation parameters in B-0 -> phi K-0, eta K-'(0), (KSKSKS0)-K-0-K-0 decays based on a sample of 535 x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. We obtain sin2 phi(eff)(1) = +0.64 +/- 0.10(stat) +/- 0.04(syst) for B-0 -> eta K-'(0), +0.50 +/- 0.21(stat) +/- 0.06(syst) for B-0 ->phi K-0, and +0.30 +/- 0.32(stat) +/- 0.08(syst) for B-0 -> (KSKSKS0)-K-0-K-0 decays. We have observed CP violation in the B-0 -> eta K-'(0) decay with a significance of 5.6 standard deviations. We also perform an improved measurement of CP asymmetries in B-0 -> J/psi K-0 decays and obtain sin2 phi(1) = +0.642 +/- 0.031(stat) +/- 0.017(syst).

引用

页数：6

共 50 条

[31] Corrections to sin(2β) from CP asymmetries in B0 → (π0, ρ0, η, η′, φ)KS decays
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[32] Branching fraction and CP asymmetries of B0→KS0KS0KS0 -: art. no. 011801
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Becker, J.
Behera, P. K.
Bennett, J., V
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Bertemes, M.
Bertholet, E.
Bessner, M.
Bettarini, S.
Bhuyan, B.
Bianchi, F.
Bilka, T.
Biswas, D.
Bodrov, D.
Bondar, A.
Borah, J.
Bozek, A.
Bracko, M.
Branchini, P.
Briere, R. A.
Browder, T. E.
Budano, A.
Bussino, S.
Campajola, M.
Cao, L.
Casarosa, G.
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[34] B0 → ωK*0 and B0 → ρ0ρ0 Decays at Belle
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[35] Measurement of time-dependent CP-violating asymmetries in B0→K*0γ(K*0→KS0π0) decays -: art. no. 201801
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Hicheur, A
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[36] Investigation of CP violation in B0→J/ψKs0 decays at LEP
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Alexander, G
Allison, J
Altekamp, N
Anderson, KJ
Anderson, S
Arcelli, S
Asai, S
Ashby, SF
Axen, D
Azuelos, G
Ball, AH
Barberio, E
Barlow, RJ
Bartoldus, R
Batley, JR
Baumann, S
Bechtluft, J
Behnke, T
Bell, KT
Bella, G
Bentvelsen, S
Bethke, S
Betts, S
Biebel, O
Biguzzi, A
Bird, SD
Blobel, V
Bloodworth, IJ
Bobinski, M
Bock, P
Bonacorsi, D
Boutemeur, M
Braibant, S
Brigliadori, L
Brown, RM
Burckhart, HJ
Burgard, C
Burgin, R
Capiluppi, P
Carnegie, RK
Carter, AA
Carter, JR
Chang, CY
Charlton, DG
Chrisman, D
Clarke, PEL
Cohen, I
Conboy, JE
Cooke, OC
EUROPEAN PHYSICAL JOURNAL C, 1998, 5 (03): : 379 - 388
[37] Measurement of time-dependent CP-violating parameters in B0→KS0KS0 decays
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Aushev, T.
Bakich, A. M.
Balagura, V.
Barberio, E.
Bedny, I.
Belous, K.
Bitenc, U.
Bondar, A.
Bozek, A.
Bracko, M.
Browder, T. E.
Chang, P.
Chao, Y.
Chen, A.
Chen, K. -F.
Chen, W. T.
Cheon, B. G.
Chistov, R.
Cho, I. -S.
Choi, Y.
Dalseno, J.
Dash, M.
Drutskoy, A.
Eidelman, S.
Gabyshev, N.
Golob, B.
Ha, H.
Haba, J.
Hara, K.
Hara, T.
Hayasaka, K.
Hazumi, M.
Heffernan, D.
Hoshi, Y.
Hsiung, Y. B.
Hyun, H. J.
Iijima, T.
Inami, K.
Ishikawa, A.
Ishino, H.
Itoh, R.
Iwasaki, M.
Iwasaki, Y.
Kah, D. H.
Kaji, H.
Kang, J. H.
PHYSICAL REVIEW LETTERS, 2008, 100 (12)
[38] Measurement of time-dependent CP-violating asymmetries in B0→φKS0, K+K-KS0, and η′KS0 decays -: art. no. 261602
Abe, K
Abe, K
Abe, T
Adachi, I
Aihara, H
Akai, K
Akatsu, M
Asano, Y
Aso, T
Aushev, T
Bahinipati, S
Bakich, AM
Ban, Y
Banerjee, S
Bedny, I
Bizjak, I
Bondar, A
Bozek, A
Bracko, M
Brodzicka, J
Browder, TE
Chang, MC
Chang, P
Chao, Y
Chen, KF
Cheon, BG
Chistov, R
Choi, SK
Choi, Y
Choi, YK
Chuvikov, A
Danilov, M
Dong, LY
Eidelman, S
Eiges, V
Enari, Y
Flanagan, J
Fukunaga, C
Furukawa, K
Gabyshev, N
Garmash, A
Gershon, T
Golob, B
Guo, R
Haba, J
Hagner, C
Hara, K
Hara, T
Hastings, NC
Hayashii, H
PHYSICAL REVIEW LETTERS, 2003, 91 (26)
[39] Search for B0 meson decays to π0KS0KS0, ηKS0KS0, and η'KS0KS0
Aubert, B.
Karyotakis, Y.
Lees, J. P.
Poireau, V.
Prencipe, E.
Prudent, X.
Tisserand, V.
Garra Tico, J.
Grauges, E.
Martinelli, M.
Palano, A.
Pappagallo, M.
Eigen, G.
Stugu, B.
Sun, L.
Battaglia, M.
Brown, D. N.
Kerth, L. T.
Kolomensky, Yu. G.
Lynch, G.
Osipenkov, I. L.
Tackmann, K.
Tanabe, T.
Hawkes, C. M.
Soni, N.
Watson, A. T.
Koch, H.
Schroeder, T.
Asgeirsson, D. J.
Fulsom, B. G.
Hearty, C.
Mattison, T. S.
McKenna, J. A.
Barrett, M.
Khan, A.
Randle-Conde, A.
Blinov, V. E.
Bukin, A. D.
Buzykaev, A. R.
Druzhinin, V. P.
Golubev, V. B.
Onuchin, A. P.
Serednyakov, S. I.
Skovpen, Yu. I.
Solodov, E. P.
Todyshev, K. Yu.
Bondioli, M.
Curry, S.
Eschrich, I.
Kirkby, D.
PHYSICAL REVIEW D, 2009, 80 (01):
[40] The time-dependent CP asymmetry in B0 → Kresγ → π+π-Ks0γ decays
Akar, S.
Ben-Haim, E.
Hebinger, J.
Kou, E.
Yu, F. -S.
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