Measurement of the Time-Dependent CP Asymmetries in B0 → K0Sρ0γ Decays

被引：22

作者：

Li, J. ^{[1
]}

Adachi, I. ^{[6
]}

Arinstein, K. ^{[2
]}

Aushev, T. ^{[11
,16
]}

Bakich, A. M. ^{[36
]}

Balagura, V. ^{[11
]}

Bedny, I. ^{[2
]}

Bhardwaj, V. ^{[31
]}

Bitenc, U. ^{[12
]}

Bozek, A. ^{[25
]}

Bracko, M. ^{[12
,18
]}

Browder, T. E. ^{[1
]}

Chang, P. ^{[24
]}

Chao, Y. ^{[24
]}

Chen, A. ^{[22
]}

Cheon, B. G. ^{[5
]}

Chistov, R. ^{[11
]}

Choi, Y. ^{[35
]}

Dalseno, J. ^{[6
]}

Drutskoy, A. ^{[4
]}

Eidelman, S. ^{[2
]}

Gabyshev, N. ^{[2
]}

Ha, H. ^{[13
]}

Hara, K. ^{[20
]}

Hasegawa, Y. ^{[34
]}

Hayashii, H. ^{[21
]}

Hazumi, M. ^{[6
]}

Heffernan, D. ^{[30
]}

Hoshi, Y. ^{[39
]}

Hou, W. -S. ^{[24
]}

Hyun, H. J. ^{[15
]}

Iijima, T. ^{[20
]}

Ishikawa, A. ^{[32
]}

Itoh, R. ^{[6
]}

Iwasaki, M. ^{[41
]}

Iwasaki, Y. ^{[6
]}

Joshi, N. J. ^{[37
]}

Kah, D. H. ^{[15
]}

Kang, J. H. ^{[45
]}

Kawai, H. ^{[3
]}

Kawasaki, T. ^{[27
]}

Kichimi, H. ^{[6
]}

Kim, Y. I. ^{[15
]}

Kim, Y. J.

Kinoshita, K. ^{[4
]}

Korpar, S. ^{[12
,18
]}

Krizan, P. ^{[12
,17
]}

Krokovny, P. ^{[6
]}

Kumar, R. ^{[31
]}

Kuzmin, A. ^{[2
]}

机构：

[1] Univ Hawaii, Honolulu, HI 96822 USA

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

[3] Chiba Univ, Chiba, Japan

[4] Univ Cincinnati, Cincinnati, OH 45221 USA

[5] Hanyang Univ, Seoul 133791, South Korea

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

[7] Hiroshima Inst Technol, Hiroshima, Japan

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

[9] Inst High Energy Phys, Vienna, Austria

[10] Inst High Energy Phys, Protvino, Russia

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

[12] J Stefan Inst, Ljubljana, Slovenia

[13] Kanagawa Univ, Yokohama, Kanagawa, Japan

[14] Korea Univ, Seoul, South Korea

[15] Kyungpook Natl Univ, Taegu, South Korea

[16] Ecole Polytech Fed Lausanne, Lausanne, Switzerland

[17] Univ Ljubljana, Fac Math & Phys, Ljubljana, Slovenia

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

[19] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia

[20] Nagoya Univ, Nagoya, Aichi 4648601, 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, Taiwan

[25] H Niewodniczanski Inst Nucl Phys, Krakow, Poland

[26] Nippon Dent Univ, Niigata, Japan

[27] Niigata Univ, Niigata, Japan

[28] Univ Nova Gorica, Nova Gorica, Slovenia

[29] Osaka City Univ, Osaka 558, Japan

[30] Osaka Univ, Osaka, Japan

[31] Panjab Univ, Chandigarh 160014, India

[32] Saga Univ, Saga 840, Japan

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

[34] Shinshu Univ, Nagano, Japan

[35] Sungkyunkwan Univ, Suwon, South Korea

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

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

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

[39] Tohoku Gakuin Univ, Tagajo, Miyagi, Japan

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

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

[42] Tokyo Metropolitan Univ, Tokyo 158, Japan

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

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

[45] Yonsei Univ, Seoul 120749, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.101.251601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first measurement of time-dependent CP asymmetry in B-0 -> K-S(0)rho(0)gamma decays based on 657 x 10(6) B (B) over bar B pairs collected with the Belle detector at the KEKB asymmetric-energy collider. We measure the CP-violating parameter S-KS0 rho 0 gamma = 0.11 +/- 0.33(stat)(-0.09)(+0.05)(syst) from a signal of 212 +/- 17 events. We also obtain the effective direct CP-violating parameter A(eff) = 0.05 +/- 0.18(stat) +/- 0.06(syst) for m(KS0 pi+pi-) < 1.8 GeV/c(2) and 0.6 GeV= c(2) < m(pi+pi-) < 0.9 GeV/c(2).

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页数：6

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