Summary
A class of Thirring models self-coupled through a non-covariant current operator is investigated. It is shown that such a coupling will lead to physically meaningful results only at a fixed coupling strength. Furthermore, symmetry-breaking solutions of a kind to be specified in the text are permissible only at this particular coupling strength. The question of Goldstone zero-mass bosons is discussed.
Riassunto
Si studia una classe di modelli di Thirring autoaccoppiati, tramite un operatore di corrente non covariante. Si dimostra che tale accoppiamento portera a risultati fisicamente signifleativi solo per una forza di accoppiamento fissa. Inoltre soluzioni che infrangono la simmetria, di un tipo che sarà speciflcato nel testo, sono permesse solo a questa particolare forza di accoppiamento. Si discute la questione del bosone di massa nulla di Goldstone.
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References
W. Thirring:Ann. Phys.,3, 91 (1958).
J. Schwinger:Proc. Nat. Ac. Sci. U.S.A.,37, 452 (1951).
see M. I. T. thesis of the author (June 1963).
K. Johnson:Nuovo Cimento,20, 773 (1961).
C. Sommerfield:Ann. Phys.,26, 1 (1963).
J. Schwimger:Phys. Rev.,82, 664 (1951).
K. Johnson:Nucl. Phys.,25, 431 (1961).
J. Goldstone:Nuovo Cimento,19, 154 (1961).
J. Goldstone, A. Salam andS. Weinberg:Phys. Rev.,127, 965 (1962).
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This report is based on a part of a thesis submitted to Massachusetts Instituet of Technology in June 1963, in partial fulfillement of the requirements for the degree of Doctor of Philosophy. It was also supported in part by the National Science Foundation and the Air Force Office of Scientific Research.
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Lam, C.S. On a class of thirring models. Nuovo Cim 34, 637–644 (1964). https://doi.org/10.1007/BF02750006
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DOI: https://doi.org/10.1007/BF02750006