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14 papers · 1 filter
Two neutrino double beta decay within the -approximation
C. Barbero, F. Krmpotić, A. Mariano
We examine the contributions of odd-parity nuclear operators to the two-neutrino double beta decay amplitude, which come from the -wave Coulomb corrections…
Confined two-dimensional fermions at finite density
M. De Francia, H. Falomir, M. Loewe +1
We introduce the chemical potential in a system of two-dimensional massless fermions, confined to a finite region, by imposing twisted boundary conditions in the Euclidean time dir…
Spin-Dependent Weak Structure Functions
D. de Florian, R. Sassot
The complete next to leading logarithmic () corrections to the spin dependent weak deep inelastic structure functions and , are calculated usi…
The -function answer to parity violation in three dimensional gauge theories
R. E. Gamboa Saravi, G. L. Rossini, F. A. Schaposnik
We study parity violation in -dimensional gauge theories coupled to massive fermions. Using the -function regularization approach we evaluate the ground state fermion curre…
Non-abelian bosonization from factored coset models in path integrals
A. N. Theron, F. A. Schaposnik, F. G. Scholtz +1
We present a derivation of abelian and non-abelian bosonization in a path integral setting by expressing the generating functional for current-current correlation functions as a pr…
Path-Integral bosonization of a non-local interaction and its application to the study of 1-d many-body systems
C. M. Naón, M. C. von Reichenbach, M. L. Trobo
We extend the path-integral approach to bosonization to the case in which the fermionic interaction is non-local. In particular we obtain a completely bosonized version of a Thirri…