Zooming in on jets with effective field theory

by Thomas Becher (University of Bern)

Wednesday 15 Jan 2014, 14:30 → 15:30 Europe/Berlin

build. 2a, SR 2 (DESY Hamburg)

In order to fully exploit the physics potential of the LHC, we need precise theoretical predictions also for less inclusive observables. This is challenging in several ways. First of all, perturbative computations get much more involved for higher jet multiplicities. Secondly, higher-order corrections are enhanced if one wants to predict properties of individual jets, or more generally if a collider observable involves several disparate scales. In my talk I will discuss this second challenge. I will explain the physics of soft and collinear emissions and outline how their structure can be implemented into an effective field theory. I will then present some recent examples of how this Soft-Collinear Effective Theory has been used to resum enhanced higher-order corrections, in particular to Higgs production processes at the LHC.