Observation of B+->(Xi)over-bar(c)(0)Lambda(+)(c) and evidence for B-0 ->(Xi)over-bar(c)(-)Lambda(+)(c)
文献类型：期刊论文
| 作者 | Chistov, R; Abe, K; Adachi, I; Aihara, H; Anipko, D; Arinstein, K; Asano, Y; Aulchenko, V; Aushev, T; Bahinipati, S |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2006 |
| 卷号 | 74期号:11页码:111105 |
| 通讯作者 | Budker Inst Nucl Phys, Novosibirsk 630090, Russia ; Chonnam Natl Univ, Kwangju 500757, South Korea ; Univ Cincinnati, Cincinnati, OH 45221 USA ; Gyeongsang Natl Univ, Chinju, South Korea ; Univ Hawaii, Honolulu, HI 96822 USA ; High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan ; Hiroshima Inst Technol, Hiroshima, Japan ; Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China ; Inst High Energy Phys, Vienna, Austria ; Jozef Stefan Inst, Ljubljana, Slovenia ; Kanagawa Univ, Yokohama, Kanagawa, Japan ; Korea Univ, Seoul 136701, South Korea ; Kyungpook Natl Univ, Taegu 702701, South Korea ; Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, CH-1015 Lausanne, Switzerland ; Univ Ljubljana, Ljubljana, Slovenia ; Univ Maribor, SLO-2000 Maribor, Slovenia ; Univ Melbourne, Parkville, Vic 3052, Australia ; Nagoya Univ, Nagoya, Aichi, Japan ; Nara Womens Univ, Nara 630, Japan ; Natl Cent Univ, Chungli 32054, Taiwan ; Natl Taiwan Univ, Dept Phys, Taipei 10764, Taiwan ; H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland ; Nippon Dent Univ, Niigata, Japan ; Niigata Univ, Niigata, Japan ; Osaka City Univ, Osaka 558, Japan ; Osaka Univ, Osaka, Japan ; Peking Univ, Beijing 100871, Peoples R China ; Univ Pittsburgh, Pittsburgh, PA 15260 USA ; Princeton Univ, Princeton, NJ 08544 USA ; Univ Sci & Technol China, Hefei 230026, Peoples R China ; Shinshu Univ, Nagano, Japan ; Sungkyunkwan Univ, Suwon 440746, South Korea ; Univ Sydney, Sydney, NSW 2006, Australia ; Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India ; Toho Univ, Funabashi, Chiba 274, Japan ; Tohoku Gakuin Univ, Tagajo, Miyagi 985, Japan ; Tohoku Univ, Sendai, Miyagi 980, Japan ; Univ Tokyo, Dept Phys, Tokyo 113, Japan ; Tokyo Inst Technol, Tokyo 152, Japan ; Tokyo Metropolitan Univ, Tokyo 158, Japan ; Univ Tsukuba, Tsukuba, Ibaraki 305, Japan ; Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA ; Yonsei Univ, Seoul 120749, South Korea |
| 英文摘要 | We report the first observation of the decay B+->(Xi) over bar (0)(c)Lambda(+)(c) with a significance of 8.7 sigma and evidence for the decay B-0 ->(Xi) over bar (-)(c)Lambda(+)(c) with a significance of 3.8 sigma. The product B(B+->(Xi) over bar (0)(c)Lambda(+)(c))xB (Xi) over bar (0)(c)->(Xi) over bar (+)pi(-)) is measured to be (4.8(-0.9)(+1.0)+/- 1.1 +/- 1.2)x10(-5), and B(B-0 ->(Xi) over bar (-)(c)Lambda(+)(c))xB ($) over bar (-)(c)->(Xi) over bar (+)pi(-)pi(-)) is measured to be (9.3(-2.8)(+3.7)+/- 1.9 +/- 2.4)x10(-5). The errors are statistical, systematic and the error of the Lambda(+)(c)-> pK(-)pi(+) branching fraction, respectively. The decay B+->(Xi) over bar (0)(c)Lambda(+)(c) is the first example of a two-body exclusive B+ decay into two charmed baryons. The data used for this analysis was accumulated at the Upsilon(4S) resonance, using the Belle detector at the e(+)e(-) asymmetric-energy collider KEKB. The integrated luminosity of the data sample is equal to 357 fb(-1), corresponding to 386x10(6) (B) over bar pairs. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000243170500005 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240921]  |
| 专题 | 中国科学院高能物理研究所_中国散裂中子源 高能物理研究所_实验物理中心 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Chistov, R,Abe, K,Adachi, I,et al. Observation of B+->(Xi)over-bar(c)(0)Lambda(+)(c) and evidence for B-0 ->(Xi)over-bar(c)(-)Lambda(+)(c)[J]. PHYSICAL REVIEW D,2006,74(11):111105. |
| APA | Chistov, R.,Abe, K.,Adachi, I.,Aihara, H.,Anipko, D.,...&Zhilich, V.(2006).Observation of B+->(Xi)over-bar(c)(0)Lambda(+)(c) and evidence for B-0 ->(Xi)over-bar(c)(-)Lambda(+)(c).PHYSICAL REVIEW D,74(11),111105. |
| MLA | Chistov, R,et al."Observation of B+->(Xi)over-bar(c)(0)Lambda(+)(c) and evidence for B-0 ->(Xi)over-bar(c)(-)Lambda(+)(c)".PHYSICAL REVIEW D 74.11(2006):111105. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。