Measurement of the lifetime difference in D0 meson decays -: art. no. 162001

被引：3

作者：

Abe, K ^{[1
]}

Abe, R

Abe, T

Adachi, I

Ahn, BS

Aihara, H

Akatsu, M

Asano, Y

Aso, T

Aulchenko, V

Aushev, T

Bakich, AM

Ban, Y

Behari, S

Behera, PK

Bondar, A

Bozek, A

Browder, TE

Casey, BCK

Chao, Y

Cheon, BG

Chistov, R

Choi, Y

Dong, LY

Eidelman, S

Eiges, V

Fang, F

Fujii, H

Fukunaga, C

Fukushima, M

Gabyshev, N

Garmash, A

Gershon, T

Gordon, A

Guo, R

Haba, J

Hamasaki, H

Hanagaki, K

Handa, F

Hara, K

Hara, T

Hastings, NC

Hayashii, H

Hazumi, M

Heenan, EM

Higuchi, I

Higuchi, T

Hojo, T

Hokuue, T

机构：

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

[2] Aomori Univ, Aomori, Japan

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

[4] Chiba Univ, Chiba, Japan

[5] Chuo Univ, Tokyo 112, Japan

[6] Univ Cincinnati, Cincinnati, OH 45221 USA

[7] Goethe Univ Frankfurt, D-6000 Frankfurt, Germany

[8] Univ Hawaii, Honolulu, HI 96822 USA

[9] Hiroshima Inst Technol, Hiroshima, Japan

[10] Univ Tokyo, Inst Cosm Ray Res, Tokyo, Japan

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

[12] Inst High Energy Phys, Vienna, Austria

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

[14] Jozef Stefan Inst, Ljubljana, Slovenia

[15] Kanagawa Univ, Yokohama, Kanagawa, Japan

[16] Korea Univ, Seoul 136701, South Korea

[17] Kyoto Univ, Kyoto, Japan

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

[19] Univ Lausanne, Inst High Energy Phys, Lausanne, Switzerland

[20] Univ Ljubljana, Ljubljana, Slovenia

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

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

[23] Nagasaki Inst Appl Sci, Nagasaki, Japan

[24] Nagoya Univ, Nagoya, Aichi, Japan

[25] Nara Womens Univ, Nara 630, Japan

[26] Natl Kaohsiung Normal Univ, Kaohsiung, Taiwan

[27] Natl Lien Ho Inst Technol, Miaoli, Taiwan

[28] Natl Taiwan Univ, Taipei 10764, Taiwan

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

[30] Nihon Dent Coll, Niigata, Japan

[31] Niigata Univ, Niigata, Japan

[32] Osaka City Univ, Osaka 558, Japan

[33] Osaka Univ, Osaka, Japan

[34] Panjab Univ, Chandigarh 160014, India

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

[36] Princeton Univ, Princeton, NJ 08544 USA

[37] Saga Univ, Saga 840, Japan

[38] Seoul Natl Univ, Seoul, South Korea

[39] Sungkyunkwan Univ, Suwon 440746, South Korea

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

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

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

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

[44] Univ Tokyo, Tokyo, Japan

[45] Tokyo Inst Technol, Tokyo 152, Japan

[46] Tokyo Metropolitan Univ, Tokyo 158, Japan

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

[48] Toyama Natl Coll Maritime Technol, Toyama, Japan

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

[50] Utkal Univ, Bhubaneswar 751004, Orissa, India

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.88.162001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a measurement of the D-0-(D) over bar (0) mixing parameter y(CP) using 23.4 fb (-1) of data collected near the Y(4S) resonance with the Belle detector at KEKB. y(CP) is measured from the lifetime difference of D-0 mesons decaying into the K(-)pi(+) state and the CP-even eigenstate K-K+ . We find y(CP)=(-0.5+/-1.0(-0.8)(+0.7)) x 10(-2) , where the first error is statistical and the second is systematic, corresponding to a 95% confidence interval -0.030<y(CP)<0.020 .

引用

页数：6

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