Speaker
Christopher Lee
(Los Alamos National Laboratory)
Description
Logarithms of jet radii R become large in jet cross sections when R is small. In exclusive jet cross sections with jets of energy Q and a veto on additional jets of energy E, we find that logs of R come from ratios of not one but two hierarchies of scales, QR over Q and ER over E. We construct an effective field theory with modes for both hard-collinear and soft-collinear scales QR and ER, allowing the factorization of dependences on all scales, and resummation of logarithms of R to arbitrarily high accuracy in resummed perturbation theory.
Primary author
Christopher Lee
(Los Alamos National Laboratory)
