Radiative Decays of Charmonium into Light Mesons
GAO Ying-Jia, ZHANG Yu-Jie, CHAO Kuang-Ta
Department of Physics, Peking University, Beijing 100871
Radiative Decays of Charmonium into Light Mesons
GAO Ying-Jia;ZHANG Yu-Jie;CHAO Kuang-Ta
Department of Physics, Peking University, Beijing 100871
关键词 ：
12.38.Bx ,
13.25.Hw ,
14.40.Gx
Abstract ： We apply perturbative QCD to the radiative decays of charmonia J/ψ and XcJ into light mesons. We perform a complete numerical calculation for the quark--gluon loop diagrams involved in these processes. The calculated J/ψ decay branching ratios into p-wave mesons f2 (1270) and f1 (1285) fit the data well, while that of f0 (980) (if treated as an ss meson) is predicted to be 1.6×10-4 , which implies that f0 (1710) can not be the ss or (uu+dd)√2 meson. Decays of p-wave charmonia XcJ → ρ (ω,Ф) γ (J=0,1,2) are also studied, and the branching ratio of Xcl → ρ γ is predicted to be 1.4×10-5 , which may be tested by CLEO-c ollaboration and BESIII collaboration with future experiments.
Key words ：
12.38.Bx
13.25.Hw
14.40.Gx
出版日期: 2006-09-01
引用本文:
GAO Ying-Jia;ZHANG Yu-Jie;CHAO Kuang-Ta. Radiative Decays of Charmonium into Light Mesons[J]. 中国物理快报, 2006, 23(9): 2376-2378.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2006/V23/I9/2376
[1]
DU Dong-Sheng;LI Ying;Lü Cai-Dian. Study of W-Exchange Mode D0 → ФK0
[2]
Lü Cai-Dian;SHEN Yue-Long;WANG Wei. Role of Electromagnetic Dipole Operator in the Electroweak Penguin Dominated Vector Meson Decays of B Meson
[3]
SHEN Zhen-Qi;ZHU Wei. Colour Dipole Picture for Deep Inelastic Scattering in the Collinear Factorization Scheme
[4]
ZHANG Ben-Wei;WANG En-Ke. Photon Radiation Induced by Multiple Parton Rescattering in Deeply Inelastic Scattering
[5]
ZHANG Chao;ZHENG Xiao-Ping;LI Jia-Rong. Colour Conductivity of a Quark Plasma at Finite Chemical Potential
[6]
WU Xiang-Yao;LI Zuo-Hong;CUI Jian-Ying;HUANG Tao. Impacts of the Soft-Gluon Exchanges on B →ππ Decays
[7]
ZHENG Xiao-Ping;LI Jia-Rong. Covariant Perturbation Theory of Non-Abelian Kinetic Theory
[8]
GUO Li-Bo;DU Dong-Sheng. Perturbative Quantum Chromodynamics Effects in Bc →PP Decays
[9]
RUAN Jian-Hong;ZHU Wei;LI Guang-Lie;. A Twist-4 Effect in the Parton Evolution Processes
[10]
ZHU Wei. A New Derivation of Standard Quantum Chromodynamics Evolution Equation
[11]
WU Yue-liang. Probing New Physics from CP Violation in Radiative B Decays
[12]
LIANG Wei-hong;LIU Ji-feng;SHEN Peng-nian;;Li Xue-qian. Effects of Condensates of Higher Dimensional Operators on Quarkonium System
[13]
LIU Jue-ping;WANG Ping. Static Three-Body Potential in Baryons
[14]
DAI Yuan-ben;HUANG Chao-shang;HUANG Ming-qiu;JIN Hong-ying;LIU Chun. Decay Widths of Excited Heavy Mesons from Quantum Chromodynamics
Sum Rules in the Infinite Mass Limit
[15]
ZHU Shou-hua;LI Chong-sheng;GAO Chong-shou. Single Minimal Supersymmetric Extension of Standard Model Higgs Production in γγ Collision
2006, Vol. 23 
