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Chinese Physics C> 1991, Vol. 15> Issue(S3) : 265-272 

On the η'c Particle and its Electromagnetic Decays

  •  1 Department of Physics, Graduate School, the Chinese Academy of Sciences, Beijing, China;

  •  2 Department of Physics, Beijing University, Beijing, China;

  •  3 Institutc of Theoretical Physics, Chinese Academy of Sciences, Beijing, China;

  •  4 CCAST(Worid Laboratory)

  • In the framework of the potential model, the mass, width and branching ratios of η'c are estimated. It is shown that it is possible for the width of the forbidden Ml transition η'c → γJ/ψ to raise one order of magnitude after considering relativistic corrections in comparison with the non-relativistic result. The possibilities to measure the cascade electromagnetic radiation processes ψ'/(3686) → γη'c→ γγ1P1,γγJ/ψ,3γ at the Beijing Electron-Positron Collider (BEPC) are discussed.
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Ding Yibing, Qin Danhua, Zhao Guangda and Zhou Lei. On the η'c Particle and its Electromagnetic Decays[J]. Chinese Physics C, 1991, 15(S3): 265-272.
Ding Yibing, Qin Danhua, Zhao Guangda and Zhou Lei. On the η'c Particle and its Electromagnetic Decays[J]. Chinese Physics C, 1991, 15(S3): 265-272. shu
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Received: 1990-11-15
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    Supported by the National Natural Science Foundation of China and the State Education Commission of China.

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On the η'c Particle and its Electromagnetic Decays

  • 1 Department of Physics, Graduate School, the Chinese Academy of Sciences, Beijing, China;
  • 2 Department of Physics, Beijing University, Beijing, China;
  • 3 Institutc of Theoretical Physics, Chinese Academy of Sciences, Beijing, China;
  • 4 CCAST(Worid Laboratory)
  • Received Date: 1990-11-15
Fund Project:  Supported by the National Natural Science Foundation of China and the State Education Commission of China.

Abstract: In the framework of the potential model, the mass, width and branching ratios of η'c are estimated. It is shown that it is possible for the width of the forbidden Ml transition η'c → γJ/ψ to raise one order of magnitude after considering relativistic corrections in comparison with the non-relativistic result. The possibilities to measure the cascade electromagnetic radiation processes ψ'/(3686) → γη'c→ γγ1P1,γγJ/ψ,3γ at the Beijing Electron-Positron Collider (BEPC) are discussed.

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