Relativistic Quarkonium Model.II : Radiative E1 Transitions : Particles and Fields
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概要
- 論文の詳細を見る
E1 transitions in the charmonium and the bb^^- system are investigated by using the instantaneous BS equation and the relativistic formulae, with recoil corrections, for the electromagnetic transitions. A scalar confining potential is assumed and the gluonic-retardation effect in pair-creation amplitudes is taken into account with a rough approximation. The predicted E1 transition rates for bb^^- system are consistent with the experimental values. It is shown that the Breit-Fermi approximation to the BS model holds well for this system except for the transitions 2^3P_j→1^3S_1. The relativistic effects are large for the charmonium. The transition rate Γ(ψ′→γx_0) agrees well with the experimental one. It is, however, shown that the deviations from the measured rates of the transitions ψ′→γx_j(j=1, 2) are still large.
- 理論物理学刊行会の論文
- 1985-11-25
著者
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Ito Hitoshi
Department Of Pharmacology Mie University School Of Medicine
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ITO Hitoshi
Department of Physics, Faculty of Science and Engineering, Kinki University
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ITO Hiroaki
Department of Physics, Nagoya University
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ITO Hidemi
Department of Physics, Kyoto University
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