Summary
It is shown that in taking a particular zero-slope limit (α′→0,m 2π =finite), the dual pion model reduces to a nonlinear σ-model with (1/2, 1/2) symmetry breaking in the tree approximation.
Riassunto
Si dimostra che, adottando un limite particolare di pendenza nulla (α′→0,m 2π =finito), il modello duale del pione si riduce ad un modello σ non lineare con rottura di simmetria (1/2, 1/2) nell’approssimazione ad albero.
Реэюме
Покаэывается, что при рассмотрении специального предела нулевого наклона (α′ → 0,m 2π =конечная величина) дуальная пионная модель приводит к нелинейной σ-модели с (1/2, 1/2) нарущением симметрии в древовидном приближении.
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Revised version of the preprint (UT-Komaba 72-3) circulated in February 1972.
A part of this work was started when one of us (K. K.) was staying at CERN during the summer of 1971.
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Kawarabayashi, K., Kitakado, S. Chiral dynamics as zero-slope limit of the dual pion model. Nuov Cim A 14, 190–198 (1973). https://doi.org/10.1007/BF02734612
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DOI: https://doi.org/10.1007/BF02734612