• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review, D >Observation of ψ(3686) → Ξ(1530)-Ξ (1530) + and Ξ(1530)-Ξ +
【24h】

Observation of ψ(3686) → Ξ(1530)-Ξ (1530) + and Ξ(1530)-Ξ +

机译：观察ψ（3686）→ξ（1530） - （1530）+和x（1530）-x +

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Using 448.1 × 10~6 ψ(3686) events collected with the BESIII detector at BEPCII, we employ a single-baryon tagging technique to make the first observation of ψ(3686) → Ξ(1530)-Ξ (1530)~+ and Ξ(1530)-Ξ~+ decays with a statistical significance of more than 10σ and 5.0σ, respectively. The branching fractions are measured to be B(ψ(3686) → Ξ(1530)~- Ξ(1530)~+) = (11.45 ± 0.40 ± 0.59) × 10~(-5) and B(ψ(3686) → Ξ(1530)~- Ξ~+) = (0.70 ± 0.11 ± 0.04) × 10-5. The angular distribution parameter for ψ(3686) → Ξ(1530)~- Ξ(1530)~+ is determined to be α = 0.40 ± 0.24 ± 0.06, which agrees with the theoretical predictions within 1σ. The first uncertainties are statistical, and the second systematic.
机译：使用448.1×10〜6ψ（3686）与BEPCII的BESIII探测器收集的事件，我们采用单个BAREON标记技术，使ψ（3686）→ξ（1530）-1（1530）〜+和+的第一次观察 ξ（1530）-∞〜+衰减分别具有10σ和5.0σ的统计显着性。 将分支级分测量为B（△（3686）→ξ（1530）〜 - ξ（1530）〜+）=（11.45±0.40±0.59）×10〜（-5）和B（ψ（3686）→ ξ（1530）〜 - ξ〜+）=（0.70±0.11±0.04）×10-5。 ψ（3686）→ξ（1530）〜 - ξ（1530）〜+的角分布参数被确定为α= 0.40±0.24±0.06，这与1σ内的理论预测一致。 第一个不确定性是统计学，第二系统。

著录项

  • 来源
    《Physical review, D》 |2019年第1期|共8页
  • 作者

    M. Ablikim; M. N. Achasov; d P. Adlarson; S. Ahmed; M. Albrecht; M. Alekseev; A. Amoroso; F. F. An; Q. An; Y. Bai; O. Bakina; R. Baldini Ferroli; Y. Ban; K. Begzsuren; J. V. Bennett; N. Berger; M. Bertani; D. Bettoni; F. Bianchi; J. Biernat; J. Bloms; I. Boyko; R. A. Briere; H. Cai; X. Cai;

  • 作者单位

    Institute of High Energy Physics Beijing 100049 People's Republic of China;

    G.I. Budker Institute of Nuclear Physics SB RAS (BINP) Novosibirsk 630090 Russia;

    Uppsala University Box 516 SE-75120 Uppsala Sweden;

    Helmholtz Institute Mainz Johann-Joachim-Becher-Weg 45 D-55099 Mainz Germany;

    Bochum Ruhr-University D-44780 Bochum Germany;

    University of Turin I-10125 Turin Italy;

    University of Turin I-10125 Turin Italy;

    Institute of High Energy Physics Beijing 100049 People's Republic of China;

    University of Science and Technology of China Hefei 230026 People's Republic of China;

    Southeast University Nanjing 211100 People's Republic of China;

    Joint Institute for Nuclear Research 141980 Dubna Moscow region Russia;

    INFN Laboratori Nazionali di Frascati I-00044 Frascati Italy;

    Peking University Beijing 100871 People's Republic of China;

    Institute of Physics and Technology Peace Avenue 54B Ulaanbaatar 13330 Mongolia;

    Carnegie Mellon University Pittsburgh Pennsylvania 15213 USA;

    Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45 D-55099 Mainz Germany;

    INFN Laboratori Nazionali di Frascati I-00044 Frascati Italy;

    INFN Sezione di Ferrara I-44122 Ferrara Italy;

    University of Turin I-10125 Turin Italy;

    Uppsala University Box 516 SE-75120 Uppsala Sweden;

    University of Muenster Wilhelm-Klemm-Strasse 9 48149 Muenster Germany;

    Joint Institute for Nuclear Research 141980 Dubna Moscow region Russia;

    Carnegie Mellon University Pittsburgh Pennsylvania 15213 USA;

    Wuhan University Wuhan 430072 People's Republic of China;

    Institute of High Energy Physics Beijing 100049 People's Republic of China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 粒子物理学;场论;
  • 关键词

    BESIII; observation; angular;

    机译：besiii;观察;角度;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号