Measurement of the absolute branching fraction of the inclusive decay Λ c + → K S 0 X \\documentclass12pt{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$\\Lambda _c^+ \\rightarrow K_S^0X$$\\end{document}
文献类型：期刊论文
| 作者 | M. Ablikim2; M. N. Achasov3; P. Adlarson4; S. Ahmed5; M. Albrecht6; A. Amoroso7; Q. An8; Anita10; Y. Bai11; O. Bakina12 |
| 刊名 | The European Physical Journal C
 |
| 出版日期 | 2020 |
| 卷号 | 80期号:10 |
| ISSN号 | 1434-6044 |
| 英文摘要 | We report the first measurement of the absolute branching fraction of the inclusive decay Λ c + → K S 0 X \documentclass12pt{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\Lambda _c^+ \rightarrow K_S^0X$$\end{document} . The analysis is performed using an e + e - \documentclass12pt{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$e^+e^-$$\end{document} collision data sample corresponding to an integrated luminosity of 567 pb - 1 \documentclass12pt{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbox {pb}^{-1}$$\end{document} taken at s \documentclass12pt{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\sqrt{s}$$\end{document} = 4.6GeV with the BESIII detector. Using eleven Cabibbo-favored Λ ˉ c - \documentclass12pt{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\bar{\Lambda }}_c^-$$\end{document} decay modes and the double-tag technique, this absolute branching fraction is measured to be B ( Λ c + → K S 0 X ) = ( 9.9 ± 0.6 ± 0.4 ) % \documentclass12pt{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\mathcal {B}}(\Lambda _c^+ \rightarrow K_S^0X)=(9.9\pm 0.6\pm 0.4)\%$$\end{document} , where the first uncertainty is statistical and the second systematic. The relative deviation between the branching fractions for the inclusive decay and the observed exclusive decays is ( 18.7 ± 8.3 ) % \documentclass12pt{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$(18.7\pm 8.3)\%$$\end{document} , which indicates that there may be some unobserved decay modes with a neutron or excited baryons in the final state. |
| 语种 | 英语 |
| 源URL | [http://119.78.100.186/handle/113462/136953]  |
| 专题 | 中国科学院近代物理研究所 |
| 作者单位 | 1.北京航空航天大学 2.Institute of High Energy Physics, Chinese Academy of Sciences 3.G.I. Budker Institute of Nuclear Physics SB RAS 4.乌普萨拉大学 5.Helmholtz Institute Mainz 6.Bochum Ruhr-University 7.都灵大学 8.State Key Laboratory of Particle Detection and Electronics, Beijing 100049 9.中国科学技术大学 10.Indian Institute of Technology Madras |
| 推荐引用方式 GB/T 7714 | M. Ablikim,M. N. Achasov,P. Adlarson,et al. Measurement of the absolute branching fraction of the inclusive decay Λ c + → K S 0 X \\documentclass12pt{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$\\Lambda _c^+ \\rightarrow K_S^0X$$\\end{document}[J]. The European Physical Journal C,2020,80(10). |
| APA | M. Ablikim.,M. N. Achasov.,P. Adlarson.,S. Ahmed.,M. Albrecht.,...&J. H. Zou.(2020).Measurement of the absolute branching fraction of the inclusive decay Λ c + → K S 0 X \\documentclass12pt{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$\\Lambda _c^+ \\rightarrow K_S^0X$$\\end{document}.The European Physical Journal C,80(10). |
| MLA | M. Ablikim,et al."Measurement of the absolute branching fraction of the inclusive decay Λ c + → K S 0 X \\documentclass12pt{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$\\Lambda _c^+ \\rightarrow K_S^0X$$\\end{document}".The European Physical Journal C 80.10(2020). |
入库方式： OAI收割
来源：近代物理研究所
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