Spontaneous Breakdown of Symmetry and the Gauge Invariance in a Relativistic Field Theory
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概要
- 論文の詳細を見る
The Nambu-Jona-Lasinio model in which the helicity current is coupled with a massless chiral gauge field, is discussed in the pair approximation. Our model is invariant under the constant as well as local gauge transformations. We have investigated the excitation spec-trum of physical states in thes model, under the requirement that the chiral gauge invariance is maintained at every stage. Symmetry breaking solutions are found in a noncovariant form. Contrary to previous assertions, massless fields are still present in our theory. Thus, the physical fields are a massive vector field, a massless vector field and a phase field. It is shown that the gauge transformations are carried by the phase field and the massless vector field, respectively.
- 理論物理学刊行会の論文
- 1972-07-25
著者
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Umezawa Hiroomi
Department Of Physics The University Of Alberta
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Aurilia Antonio
Theoretical Physics Institute Department Of Physics University Of Alberta
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Takahashi Yasushi
Theoretical Physics Institute Department Of Physics University Of Alberta
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UMEZAWA Hiroomi
Department of Physics, University of Wisconsin-Milwaukee
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