First measurement of the branching fraction of the decay psi(2S)->tau(+)tau(-)
文献类型：期刊论文
| 作者 | Bai, JZ; Ban, Y; Bian, JG ; Blum, I; Chen, AD; Chen, HF; Chen, HS; Chen, J; Chen, JC; Chen, XD
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2002 |
| 卷号 | 65期号:5页码:52004 |
| 通讯作者 | Inst High Energy Phys, Beijing 100039, Peoples R China ; CALTECH, Pasadena, CA 91125 USA ; China Ctr Adv Sci & Technol, Beijing 100080, Peoples R China ; Chonnam Natl Univ, Chonju 561756, South Korea ; Colorado State Univ, Ft Collins, CO 80523 USA ; Henan Normal Univ, Xinxiang 453002, Peoples R China ; Huazhong Normal Univ, Wuhan 430079, Peoples R China ; Hunan Univ, Changsha 410082, Peoples R China ; Korea Univ, Seoul 136701, South Korea ; Nankai Univ, Tianjin 300071, Peoples R China ; Peking Univ, Beijing 100871, Peoples R China ; Shandong Univ, Jinan 250100, Peoples R China ; Shanghai Jiao Tong Univ, Shanghai 200030, Peoples R China ; Seoul Natl Univ, Seoul 151742, South Korea ; Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA ; Univ Hawaii, Honolulu, HI 96822 USA ; Univ Calif Irvine, Irvine, CA 92717 USA ; Univ Sci & Technol China, Hefei 230026, Peoples R China ; Univ Texas Dallas, Richardson, TX 75083 USA ; Wuhan Univ, Wuhan 430072, Peoples R China ; Zhejiang Univ, Hangzhou 310028, Peoples R China |
| 英文摘要 | The branching fraction of the psi(2S) decay into tau(+) tau(-) has been measured for the first time using the BES detector at the Beijing Electron-Positron Collider. The result is B-tautau =(2.71+/-0.43+/-0.55) x 10(-3), where the first error is statistical and the second is systematic. This value, along with those for the branching fractions into e(+)c(-) and mu(+)mu(-) of this resonance, satisfy well the relation predicted by the sequential lepton hypothesis. Combining all these values with the leptonic width of the resonance, the total width of the psi(2S) is determined to be (252+/-37) keV. |
| 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:000174548000007 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240644]  |
| 专题 | 高能物理研究所_实验物理中心 高能物理研究所_加速器中心 高能物理研究所_粒子天体物理中心 高能物理研究所_理论物理室 高能物理研究所_多学科研究中心 高能物理研究所_计算中心 高能物理研究所_核技术应用研究中心 中国科学院高能物理研究所_中国散裂中子源 |
| 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 | Bai, JZ,Ban, Y,Bian, JG,et al. First measurement of the branching fraction of the decay psi(2S)->tau(+)tau(-)[J]. PHYSICAL REVIEW D,2002,65(5):52004. |
| APA | Bai, JZ.,Ban, Y.,Bian, JG.,Blum, I.,Chen, AD.,...&Zou, BS.(2002).First measurement of the branching fraction of the decay psi(2S)->tau(+)tau(-).PHYSICAL REVIEW D,65(5),52004. |
| MLA | Bai, JZ,et al."First measurement of the branching fraction of the decay psi(2S)->tau(+)tau(-)".PHYSICAL REVIEW D 65.5(2002):52004. |
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。