Time-dependent CP-violating asymmetries in b→s(q)over-barq transitions -: art. no. 012004

被引：73

作者：

Chen, KF ^{[1
]}

Fang, F

Garmash, A

Hara, K

Hazumi, M

Higuchi, T

Kakuno, H

Kusaka, A

Shibata, T

Tajima, O

Trabelsi, K

Ziegler, T

Abe, K

Aihara, H

Asano, Y

Aushev, T

Bahinipati, S

Bakich, AM

Ban, Y

Barberio, E

Barbero, M

Bay, A

Bedny, I

Bitenc, U

Bizjak, I

Blyth, S

Bondar, A

Bozek, A

Bracko, M

Brodzicka, J

Browder, TE

Chang, P

Chao, Y

Chen, A

Chen, WT

Cheon, BG

Chistov, R

Choi, SK

Choi, Y

Choi, YK

Chuvikov, A

Dalseno, J

Danilov, M

Dash, M

Dong, LY

Drutskoy, A

Eidelman, S

Enari, Y

Fratina, S

机构：

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

[2] Chiba Univ, Chiba, Japan

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

[4] Univ Cincinnati, Cincinnati, OH 45221 USA

[5] Gyeongsang Natl Univ, Chinju, South Korea

[6] Univ Hawaii, Honolulu, HI 96822 USA

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

[8] Hiroshima Inst Technol, Hiroshima, Japan

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

[10] Inst High Energy Phys, Vienna, Austria

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

[12] Jozef Stefan Inst, Ljubljana, Slovenia

[13] Kanagawa Univ, Kanagawa, Japan

[14] Korea Univ, Seoul 136701, South Korea

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

[16] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol Lausanne, CH-1015 Lausanne, Switzerland

[17] Univ Ljubljana, Ljubljana, Slovenia

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

[19] Univ Melbourne, Parkville, Vic 3052, Australia

[20] Nagoya Univ, Nagoya, Aichi, Japan

[21] Nara Womens Univ, Nara 630, Japan

[22] Natl Cent Univ, Chungli 32054, Taiwan

[23] Natl United Univ, Miaoli, Taiwan

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

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

[26] Nippon Dent Univ, Niigata, Japan

[27] Niigata Univ, Niigata, Japan

[28] Nova Gorica Polytech, Nova Gorica, Slovenia

[29] Osaka City Univ, Osaka 558, Japan

[30] Osaka Univ, Osaka, Japan

[31] Panjab Univ, Chandigarh 160014, India

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

[33] Princeton Univ, Princeton, NJ 08544 USA

[34] Saga Univ, Saga 840, Japan

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

[36] Seoul Natl Univ, Seoul, South Korea

[37] Sungkyunkwan Univ, Suwon 440746, South Korea

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

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

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

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

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

[43] Univ Tokyo, Dept Phys, Tokyo 113, Japan

[44] Tokyo Inst Technol, Tokyo 152, Japan

[45] Tokyo Metropolitan Univ, Tokyo 158, Japan

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

[47] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan

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

[49] Yonsei Univ, Seoul 120749, South Korea

来源：

PHYSICAL REVIEW D | 2005年 / 72卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.72.012004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present new measurements of CP-violation parameters in B-0 ->phi K-0, (K+K-KS0), f(0)(980)K-S(0), eta'K-S(0), omega K-S(0), and K-S(0)pi(0) decays based on a sample of 275 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. 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. The combined result for the B-0 ->phi K-0, (K+K-KS0), f(0)(980)K-S(0), eta'K-S(0), omega K-S(0), K-S(0)pi(0), and previously reported (KSKSKS0)-K-0-K-0 decays differs from the SM expectation by 2.4 standard deviations.

引用

页码：1 / 15

页数：15

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