Dynamical Breaking of Chiral Symmetry and Aspects of Vacuum : Particles and Fields

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概要

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• We investigate properties of non-perturbative vacuum in the presence of non-zero current quark mass by using the effective Hamiltonian which includes the fourth vector confining potentials with and without a Coulombic term. Combining the Bogoliubov-Valatin variational method with the renormalized Dyson Equations, we derive the gap equation, which is numerically solved; the condensates of a quark-antiquark pair and the dynamical masses are calculated in the cases of current masses 0, 5, 150, 1160 MeV. The results show that the vacuum for the u quark is almost the same as the one for the current mass=0, but the vacua for s and c quarks are very different.

• 理論物理学刊行会の論文
• 1987-04-25

著者

• Hirata M

  Tokyo Metropolitan Univ. Hachiohji

• Hirata Michihiro

  Department Of Physics Brown University

• HIRATA Michihiro

  Department of Physics, Brown University

• Hirata Michihiro

  Department of Mathematics, Tokyo Metropolitan University

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• Effect of Exchange Currents on Orbital g-Factor and E1 Sum Rule for Photoabsorption and Analogous Effect on Beta Decay
• The Electric Charge Distribution of the Lambda Particle : Particles and Fields
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• Dynamical Breaking of Chiral Symmetry and Aspects of Vacuum : Particles and Fields
• Reaction Mechanism in the γN→ππN Reactions

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