Observation of a charmoniumlike state produced in association with a J/ψ in e+e- annihilation at √s≈10.6 GeV

被引：62

作者：

Abe, K. ^{[1
]}

Adachi, I.

Aihara, H.

Arinstein, K.

Asano, Y.

Aulchenko, V.

Aushev, T.

Aziz, T.

Bakich, A. M.

Balagura, V.

Barbero, M.

Bedny, I.

Bitenc, U.

Bizjak, I.

Bondar, A.

Bracko, M.

Brodzicka, J.

Browder, T. E.

Chao, Y.

Chen, A.

Cheon, B. G.

Chistov, R.

Choi, S. -K.

Choi, Y.

Choi, Y. K.

Chuvikov, A.

Cole, S.

Dalseno, J.

Danilov, M.

Dash, M.

Drutskoy, A.

Eidelman, S.

Epifanov, D.

Fratina, S.

Gabyshev, N.

Gershon, T.

Gokhroo, G.

Golob, B.

Ha, H. C.

Haba, J.

Hasegawa, Y.

Hayasaka, K.

Hayashii, H.

Hazumi, M.

Hinz, L.

Hoshi, Y.

Hou, S.

Hou, W. -S.

Hsiung, Y. B.

Iijima, T.

机构：

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

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

[3] Univ Cincinnati, Cincinnati, OH 45221 USA

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

[5] Gyeongsang Natl Univ, Chinju, South Korea

[6] Univ Hawaii, Honolulu, HI 96822 USA

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

[8] Hiroshima Inst Technol, Hiroshima, Japan

[9] Chinese Acad Sci, Inst High Energy Phys, Beijing 100080, Peoples R China

[10] Inst High Energy Phys, Vienna, Austria

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

[12] J Stefan Inst, Ljubljana, Slovenia

[13] Kanagawa Univ, Yokohama, 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, CH-1015 Lausanne, Switzerland

[17] Univ Ljubljana, Ljubljana 61000, Slovenia

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

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

[20] Nagoya Univ, Nagoya, Aichi 464, Japan

[21] Nara Womens Univ, Nara 630, Japan

[22] Natl Cent Univ, Chungli 32054, Taiwan

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

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

[25] Nippon Dent Univ, Niigata, Japan

[26] Osaka City Univ, Osaka 558, Japan

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

[28] Princeton Univ, Princeton, NJ 08544 USA

[29] RIKEN BNL Res Ctr, Upton, NY 11973 USA

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

[31] Shinshu Univ, Nagano 380, Japan

[32] Sungkyunkwan Univ, Suwon 440746, South Korea

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

[34] Tata Inst Fundamental Res, Bombay, Maharashtra, India

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

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

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

[38] Univ Tokyo, Dept Phys, Tokyo 106, Japan

[39] Tokyo Inst Technol, Tokyo 152, Japan

[40] Tokyo Metropolitan Univ, Tokyo 158, Japan

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

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

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

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 08期

关键词：

D O I：

10.1103/PhysREvLett.98.082001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first observation of a charmoniumlike state recoiling from the J/psi in the inclusive process e(+)e(-)-> J/psi+anything at a mass of (3.943 +/- 0.006 +/- 0.006) GeV/c(2). We also observe the decay of this state into (DD)-D-* and determine its intrinsic width to be less than 52 MeV/c(2) at the 90% C.L. These results are obtained from a 357 fb(-1) data sample collected with the Belle detector near the Upsilon(4S) resonance, at the KEKB asymmetric-energy e(+)e(-) collider.

引用

页数：6

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