An effective field theory approach for jets

por Oscar Catà (LBNL)

miércoles 5 dic. 2007 12:00 → 13:00 Europe/Madrid

Sala Seminarios IFIC (Edf. Institutos de Investigación)

Soft collinear effective theory (SCET) is the effective field theory of QCD suitable to describe processes involving very energetic collinear particles. Its first applications were in B decays (e.g., B \rightarrow \pi K), but quite recently the framework has been applied to the study of jets and the description of parton showers. In this talk I will motivate why an effective field theory approach can be useful in this context, taking e^+e^- into hadrons as a paradigm. In particular, I will explain how the SCET matching and running is performed and report on work in progress to describe e^+e^- into hadrons up to NNLO.