4 papers
Discussing Cosmic String Configurations in a Supersymmetric Scenario without Lorentz Invariance
C. N. Ferreira, J. A. Helayel-Neto, C. E. C. Lima
The main goal of this work is to pursue an investigation of cosmic string configurations focusing on possible consequences of the Lorentz-symmetry breaking by a background vector.…
Estimative of Inelasticity Coefficient from Emulsion Chamber Data
Helio Manoel Portella, Luiz Carlos Santos de Oliveira, Carlos Eduardo Campos Lima
Atmospheric diffusion of high energy cosmic rays is studied analytically and the obtained integral electromagnetic fluxes are compared with the data measured by emulsion chamber de…
Three-Neutrino Analysis of the Super-Kamiokande Solar Neutrino Data
C. E. C. Lima, H. M. Portella, L. C. S. de Oliveira
Withdrawn by the authors due to crucial errors in equations (1) and (2).
Constraints on Vacuum Oscillations from Recent Solar Neutrino Data
C. E. C. Lima, H. M. Portella
A detailed study of the solar neutrino vacuum oscillation was made taking into account three neutrino flavours and the seasonal effect. This analysis was established for a range of…