Study of J/psi and psi(3686) decays to pi(+) pi(-) eta ' | |
BESIII Collaboration | |
刊名 | PHYSICAL REVIEW D |
2017 | |
卷号 | 96期号:11页码:112012 |
ISSN号 | 2470-0010 |
DOI | 10.1103/PhysRevD.96.112012 |
文献子类 | Article |
英文摘要 | Using the data samples of 1.31 x 10(9) J/psi events and 4.48 x 10(8) psi(3686) events collected with the BESIII detector, partial wave analyses on the decays J/psi and psi(3686) pthornp -> pi(+)pi(-)eta' are performed with a relativistic covariant tensor amplitude approach. The dominant contribution is found to be J/psi and psi(3686) decays to rho eta' In the J/psi decay, the branching fraction B(J/psi -> rho eta') is determined to be (7.90 +/- 0.19(stat) +/- 0.49(sys)) x 10(-5). Two solutions are found in the psi(3686) decay, and the corresponding branching fraction B(psi(3686) -> rho eta') is (1.02 +/- 0.11(stat) +/- 0.24(sys)) x 10(-5) for the case of destructive interference, and (5.69 +/- 1.28(stat) +/- 2.36(sys)) x 10(-6) for constructive interference. As a consequence, the ratios of branching fractions between psi(3686) and J/psi decays to rho eta' are calculated to be (12.9 +/- 1.4(stat) +/- 3.1(sys))% and (7.2 +/- 1.6(stat) +/- 3.0(sys))%, respectively. We also determine the inclusive branching fractions of J/psi and psi(3686) decays to pi(+)pi(-)eta' to be (1.36 +/- 0.02(stat) +/- 0.08(sys)) x 10(-4) and (1.51 +/- 0.14(stat)) +/- 0.23(sys)) x 10(-5), respectively. |
电子版国际标准刊号 | 2470-0029 |
WOS关键词 | ANNIHILATION ; MESONS ; VECTOR |
WOS研究方向 | Astronomy & Astrophysics ; Physics |
语种 | 英语 |
WOS记录号 | WOS:000418917900002 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihep.ac.cn/handle/311005/285384] |
专题 | 高能物理研究所_实验物理中心 |
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 | BESIII Collaboration. Study of J/psi and psi(3686) decays to pi(+) pi(-) eta '[J]. PHYSICAL REVIEW D,2017,96(11):112012. |
APA | BESIII Collaboration.(2017).Study of J/psi and psi(3686) decays to pi(+) pi(-) eta '.PHYSICAL REVIEW D,96(11),112012. |
MLA | BESIII Collaboration."Study of J/psi and psi(3686) decays to pi(+) pi(-) eta '".PHYSICAL REVIEW D 96.11(2017):112012. |
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