On Ratios of the Renormalized and the Bare Coupling Constants in the Beta Decay Interaction

スポンサーリンク

概要

• 論文の詳細を見る

• The ratio of the renormalized and the bare coupling constants in the β-decay interaction is calculated in two ways. The first is evaluation of the contribution from the process in which a neutron and an antiproton, which virtually exchange an infinite number of pions, are annihilated into an electron-neutrino (or antineutrino) pair. For this purpose a dispersion relation for the vertex function of the β-decay is assumed. Using this relation the ratio is calculated in the "ladder" approximation of Federbush, Goldberger and Treiman. The result is that the ratio is smaller than unity. The second way is calculating the ratio so as to include the main contribution from virtual nucleon pairs. For this purpose we derive an equation for the vertex operator of the β-decay. The vertex operator is calculated using Goto and Machida's approximation. The result is that the ratio for the axial vector coupling constants is larger than unity, while that for the vector coupling constants is smaller than unity. The experimental value for the ratio (~1・2) is reproduced at a rather small cutoff energy (~ one-pion rest mass).

• 理論物理学刊行会の論文
• 1960-07-25

著者

• Kawakami Ichiro

  Department Of Physics And Atomic Energy Research Institute College Of Science And Engineering Nihon

関連論文

• The Drift of a Theta Pinch Plasma Due to the Asymmetry of Magnetic Field
• Perturbation Approach to Nonlinear Vlasov Equation. : II. Nonlinear Plasma Oscillation of Finite Amplitude
• Space Charge Effect on the Acceleration of Electrons in a Theta-Pinch
• Gravitational Instability in a Plasma in a Magnetic Field. : II. Particle Picture for Collisional Damping in a Weakly Ionized Plasma
• Gravitational Instability in a Plasma in a Magnetic Field : I. Ideal Magnetohydrodynamics
• Axial Behaviors and Confinement of the Plasma in the Mirror Field Theta Pinch
• Perturbation Approach to Nonlinear Vlasov Equation. III. : Stationary Nonlinear Oscillation
• Expansion and Thermalization of Plasma in a Non-Uniform Magnetic Channel
• Perturbation Approach to Nonlinear Vlasov Equation
• The Conservation Laws in the Lepton Process and Two Kinds of Neutrinos
• On Ratios of the Renormalized and the Bare Coupling Constants in the Beta Decay Interaction
• Axial Behavior of a Plasma in the Slow Theta Pinch

もっと見る 閉じる

スポンサーリンク