Is Technicolor DEAD ? - Kenneth Lane - Boston University

jeudi 25 oct. 2007, 16:30 → 18:30 Europe/Paris

Salle Bernard Grossetête (LPNHE)

Technicolor -- the dynamical theory of electroweak and flavor symmetry breaking -- receives very little attention in the particle physics community. Theorists don't work on it and experimentalists don't plan and perform searches for it. The main reasons for this are the widespread beliefs that technicolor predicts flavor-changing neutral currents in conflict with Delta |S| = 2 effects, and that it predicts too large a value for the S-parameter of precision electroweak measurements. Neither of these beliefs are correct. I will review the basic elements of technicolor, its so-called fatal diseases, and their cure -- "walking technicolor". This cure has profound phenomenological consequences: Technicolor, if it exists, may be discovered at the Tevatron and *certainly* can be at the LHC. I will describe the signals (and backgrounds) at both.