Navegação Ciências Exatas e da Terra por Assunto "Particulas elementares"
Resultados 1-7 de 7
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Canonical quantization of a two-dimensional model with anomalous breaking of gauge invariance
(1986) [Artigo de periódico]We investigate in detail the operator quantum dynamics of a two-dimensional model exhibiting anomalous breaking of gauge invariance. The equal-time algebra is systematically obtained by using the Dirac-bracket formalism ... -
Chiral bosonization
(1988) [Artigo de periódico]We show that the Dirac-bracket quantization of a single self-dual field leads naturally to the bosonization formulas. We find a numerical parameter describing the soliton charge and unveiling hidden soliton sectors. -
Dynamics of gauge systems and Dirac's conjecture
(1985) [Artigo de periódico]For systems possessing only first-class constraints, we rigorously prove that the secondary constraints act as independent generators of gauge transformations (Dirac's conjecture). The proof essentially consists in ... -
A física dos quarks e a epistemologia
(2007) [Artigo de periódico]O objetivo deste trabalho é o de apresentar, conceitualmente, a física dos quarks como um assunto acessível e motivador que ilustra, de maneira inequívoca, a relação teoria e experimentação em física. Conta-se a história ... -
Manifestly covariant approach for the one-soliton sector
(1978) [Artigo de periódico]The one-loop contributions to the meson propagator and to the meson-soliton scattering amplitude in the one-soliton sector are analyzed using ordinary Feynman rules. It is found that, at the level of the propagator, the ... -
Reply to comment on "attractive forces bertween electrons in (2+1) - dimensional-qed"
(1993) [Artigo de periódico] -
Saturation of the massive Schwinger model
(1980) [Artigo de periódico]We determine the field configurations saturating the massive Schwinger model (MSM). Fermion confinement is proved, for the MSM, without invoking the Bose form of the theory. A gas of induced instantons accounts for the ...
