2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/127516In this lecture note, I discuss why many of us are expecting rich physics at the TeV scale, drawing analogies from the history of physics in the last century. Then I review some of the possible candidates of new physics at this energy scale. I also discuss why we believe much of the matter in the universe is not atoms (baryons) or compact astronomical objects, and hence requires physics beyond the standard model. Finally I discuss some of the candidates for the non-baryonic dark matter.Lectures at Les Houches Summer School, Session 86, Particle Physics and Cosmology: the Fabric of Spacetime, July 31- August 25, 2006High Energy Physics - Phenomenologytext