A possible return on race

Third generation superparticles search is one of the main goals of the present LHC activities. Previous LHC data has been especially effective in ruling out the existence of coloured supersymmetric particles (primarily the gluino and the first two generations of s-quarks) with masses below . However, such constraints are relaxed, in some cases by as much as a factor … Continue reading A possible return on race

Decay chains

As the production of s-quarks and gluinos is favored if kinematically allowed, these particles would start the decay chain in most cases. In the case in which such superparticles were relatively light, the decay chain would be short, and the subsequent possible decays should be few. Instead, if s-quarks and gluinos were very massive, it … Continue reading Decay chains

Supersymmetry searches

As discussed before, SUSY theories introduce the existence of particles at the TeV scale, so these could be already accessible at the . The search for these particles and the determination of their properties, such as mass, spin, etc. and their coupling becomes of central importance in order to verify the existence of new Physics … Continue reading Supersymmetry searches

Local Supersymmetry

As already seen, the MSSM contains a high number of degrees of freedom. The impossibility to have guidelines on how build a theory leads to models that consider the Supersymmetry as a local symmetry spontaneously broken at different scales with respect to the weak one. Among these, the gravity mediated Supersymmetry breaking theories (or briefly SUperGRAvity, … Continue reading Local Supersymmetry

Particles and forces

Beyond the force that holds us back in bed in the morning, there are other four fundamental forces, in Nature. At the present state of our knowledge, Nature is presented as the result of the composition of the four fundamental interactions (electromagnetic, weak, strong and gravitational) with a set of elementary particles which can be classified according … Continue reading Particles and forces