27 citations · 45 across the 4 of their papers we have counts for
6 papers · 1 filter
The "proton spin crisis" - a quantum query
Johan Hansson
The "proton spin crisis" was introduced in the late 1980s, when the EMC-experiment revealed that little or nothing of a proton's spin seemed to be carried by its quarks. The main o…
A simple solution to color confinement
Johan Hansson
We show that color confinement is a direct result of the nonabelian, i.e. nonlinear, nature of the color interaction in quantum chromodynamics. This makes it in general impossible…
Preon Trinity - a new model of leptons and quarks
Jean-Jacques Dugne, Sverker Fredriksson, Johan Hansson +1
A new model for the substructure of quarks, leptons and weak gauge bosons is discussed. It is based on three fundamental and absolutely stable spin-1/2 preons. Its preon flavour SU…
TeV Neutrinos in a dense medium
A. Nicolaidis, G. Tsirigoti, J. Hansson
The dispersion relation of energetic (few TeV) neutrinos traversing a medium is studied. We use the real time formalism of thermal field theory and we include the effects from the…
Preon Trinity
J. -J. Dugne, S. Fredriksson, J. Hansson +1
We present a new minimal model for the substructure of all known quarks, leptons and weak gauge bosons, based on only three fundamental and stable spin-1/2 preons. As a consequence…
Spin Measurements in lp -> hX Deep Inelastic Scattering
M. Anselmino, M. Boglione, J. Hansson +1
The production of hadrons in polarized lepton-nucleon deep inelastic scattering is discussed. The helicity density matrix of the hadron is computed within the QCD hard scattering f…