On the nature of χ_(c2)(2P):two-gluon decay

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英文篇名：On the nature of χ_(c2)(2P):two-gluon decay 作者：N.N.Achasov ; 康现伟 英文作者：N.N.Achasov;Xian-Wei Kang;Laboratory of Theoretical Physics, Sobolev Institute for Mathematics;College of Nuclear Science and Technology, Beijing Normal University;Institute of Physics, Academia Sinica; 英文关键词：charmonium;;branching ratio;;two-gluon decay mode 中文刊名：KNWL 英文刊名：中国物理C 机构：Laboratory of Theoretical Physics, Sobolev Institute for Mathematics;College of Nuclear Science and Technology, Beijing Normal University;Institute of Physics, Academia Sinica; 出版日期：2017-12-15 出版单位：Chinese Physics C 年：2017 期：v.41 基金：supported in part by RFBR,(16-02-00065);; by Presidium of the Russian Academy of Sciences,Project(0314-2015-0011);; supported by MOST,Taiwan,(104-2112-M-001-022) 语种：英文; 页：KNWL201712003 页数：2 CN：12 ISSN：11-5641/O4 分类号：13-14

摘要

We expect that BR(χ_(c2)(2P)→gluongluon) ≥2% if the Particle Data Group as well as the Ba Bar and Belle collaborations have correctly identified the state. In reality, this branching ratio corresponds to the one forχ_(c2)(2P) decaying into light hadrons. We also discuss the detection possibilities of these decays.
        We expect that BR(χ_(c2)(2P)→gluongluon) ≥2% if the Particle Data Group as well as the Ba Bar and Belle collaborations have correctly identified the state. In reality, this branching ratio corresponds to the one forχ_(c2)(2P) decaying into light hadrons. We also discuss the detection possibilities of these decays.

引文

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