Bag Theory with the Dirichlet Boundary Conditions and Spontaneous Symmetry Breakdown

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概要

• 論文の詳細を見る

• The Dirichlet boundary conditions of bag theory are derived for models which have chiral symmetry or gauge symmetry. In order to confine the fields inside the bag, preserving the above symmetries, the masses of the fields are generated by spontaneous symmetry breakdown, and taken to infinity outside the bag. By this method, a chiral invariant model is successfully constructed, and the Dirichlet boundary conditions are derived for a gauge invariant bag model. It is shown that, in this model, a bag is colour singlet as in the bag models (with the Neumann boundary conditions) of the MIT group, but one-quark states can exist, whose colour charges are completely shielded by the Higgs scalars and the Yang-Mills fields. This means that the shielding mechanism does not necessarily lead to quark confinement. In the Appendix, it is shown that bag models with the Neumann boundary conditions have continuous mass spectra.

• 理論物理学刊行会の論文
• 1975-12-25

著者

• MASKAWA Toshihide

  Institute for Nuclear Study, University of Tokyo

• MASKAWA Toshihide

  Research Institute for Fundamental Physics Kyoto University

• Maskawa Toshihide

  Department Of Physics Kyoto Sangyo University

• INOUE Takuo

  Department of Physics, Kyoto University

• Inoue Takuo

  Department Of Physics Kyoto University

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