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Limits on Neutrino Masses in SO(10) GUT's
O. Pisanti, L. Rosa
Studying Renormalization Group Equations for the four typical SO(10) spontaneous symmetry breaking patterns we find the existence of lower limits on neutrino masses.
SO(10) Unified Theories and Cosmology
F. Buccella, G. Mangano, O. Pisanti +1
We review the status of a class of gauge unified models based on SO(10) group. After a pedagogical introduction to SO(10) gauge theories, we discuss the main phenomenological impli…
Fermion Mass Matrices in term of the Cabibbo-Kobayashi-Maskawa Matrix and Mass Eigenvalues
D. Falcone, O. Pisanti, L. Rosa
A parameter free, model independent analysis of quark mass matrices is carried out. We find a representation in terms of a diagonal mass matrix for the down (up) quarks and a suita…
A Positive Test for Fermi-Dirac Distributions of Quark-Partons
F. Buccella, I. Dorsner, O. Pisanti +2
By describing a large class of deep inelastic processes with standard parameterization for the different parton species, we check the characteristic relationship dictated by Pauli…
Low x Behaviour of the Isovector Nucleon Polarized Structure Function and the Bjorken Sum Rule
F. Buccella, O. Pisanti, P. Santorelli
The combination g_1^p(x) - g_1^n(x) is derived from SLAC data on polarized proton and deuteron targets, evaluated at Q^2 = 10 GeV^2, and compared with the results of SMC experiment…