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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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12 papers · 2 filters
Hyperon Polarizabilities in the Bound State Soliton Model
Carlo Gobbi, Carlos L. Schat, Norberto N. Scoccola
A detailed calculation of electric and magnetic static polarizabilities of octet hyperons is presented in the framework of the bound state soliton model. Both seagull and dispersiv…
A Resonance for in the Skyrme Model
Bernd Schwesinger, Norberto N. Scoccola
The scattering of pions on a dibaryon configuration is analyzed within the Skyrme model. It is shown that this model leads to a low-lying resonance. The…
Charm lifetime
Sandra Malvezzi
A review of the charmed meson and baryon lifetimes is presented. Our knowledge of charmed particle lifetimes has greatly improved over the past two years, a crucial rôle having bee…
Just So? Vacuum Oscillations and MSW: An Update
E. Calabresu, N. Ferrari, G. Fiorentini +1
We find that vacuum oscillations (VO), large-mixing-angle and small-mixing-angle MSW solutions to the solar neutrino problem (SNP) give all very good fits to the most recent result…
Nucleon electric polarizability in soliton models and the role of the seagull terms
Norberto N. Scoccola, Thomas D. Cohen
The full Hamiltonian of the soliton models contains no electric seagull terms. Here it is shown that if one restricts the fields to the collective subspace then electric seagull te…
Three-body relativistic flux tube model from QCD Wilson-loop approach
N. Brambilla, G. M. Prosperi, A. Vairo
First we review the derivation of the relativistic flux tube model for a quark-antiquark system from Wilson area law as we have given in a preceding paper. Then we extend the metho…
HYPERON RADIATIVE DECAYS IN THE BOUND STATE SOLITON MODEL
C. L. Schat, C. Gobbi, N. N. Scoccola
The radiative decays of hyperons are studied in the framework of the bound state soliton model. Detailed predictions for the total decay widths and the E2/M1 ratios corresponding t…
Confining Bethe--Salpeter equation in QCD
N. Brambilla, G. M. Prosperi
We derive a confining Bethe--Salpeter equation starting from the same assumptions on the Wilson loop integral already adopted in the derivation of a semirelativistic h…
Wilson loop approach to the qqbar interaction problem
N. Brambilla, G. M. Prosperi
It is shown that the semirelativistic potential, the relativistic flux tube model and a confining Bethe--Salpeter equation can be derived from QCD first principles in a…
Perturbative evaluation of the eigenvalues of the Herbst Hamiltonian
N. Brambilla, A. Vairo
We reconsider the well-known and long-debated problem of the calculation of the eigenvalues of the Herbst Hamiltonian 2\sqrt{p^2 +m^2} - κ/r. We give a formulation of the problem t…
Bethe--Salpeter equation in QCD
N. Brambilla, E. Montaldi, G. M. Prosperi
We extend to regular QCD the derivation of a confining Bethe--Salpeter equation previously given for the simplest model of scalar QCD in which quarks are treated as sp…
The Standard Model on a Planck Lattice: Mixing Angles vs Quark Masses
Giuliano Preparata, She-Sheng Xue
Proceeding in our research programme on the Standard Model (SM) on a Planck lattice (PLSM) we analyse the emergence of the quark masses through a ``superconducting'' mechanism of s…