Signatures of Exotic Hadrons

Hadron spectroscopy represented in the past a major tool for understanding the fundamental symmetries of strong forces. More recently, the interest on this topic has been revitalized by the discovery of new quarkonium-like resonances, that do not fit in the standard picture and whose understanding could improve our mastery of quantum chromodynamics. I review here the experimental signatures of these exotic hadrons, at present and future e+e- and hadron collider experiments.Comment: 25 pages, 11 figures, submitted to International Journal of Modern Physics

Searches for lepton flavour violation

The search for lepton flavour violation in the charged-lepton Sector is one of the main present challenges of particle physics, since an observation of such a process, strongly suppressed in the Standard Model, could represent the first unambiguous evidence of physics beyond it. I review the main experimental programs looking for LFV, in the present and in the near future

New Physics Searches at BaBar

We will present the most recent results from the BABAR Collaboration concerning New Physics searches in rare B and Lepton Flavour Violating (LFV) decays, including b --> s transitions, purely leptonic B decays and LFV tau decays.Comment: 6 pages,1 figure, presented at SUSY0