29 September 2015 to 2 October 2015
DESY Hamburg
Europe/Berlin timezone

Resummation of double-differential cross sections

30 Sep 2015, 16:20
15m
Seminar room 4a (DESY Hamburg)

Seminar room 4a

DESY Hamburg

Speaker

Lisa Zeune (University of Amsterdam)

Description

LHC measurements involve cuts on several observables. Some lead to widely separated energy scales and require resummation. I will present an extension of SCET which enables the resummation of a class of double-differential measurements. Two prototypical application are 1) pp → Z + 0 jets, where the jet veto is imposed through the beam thrust event shape T, and the transverse momentum pT of the Z boson is measured and 2) the measurement of two angularities on a single jet. For the second application, the resummation on the two phase space boundaries was achieved recently (Larkoski, Moult, Neill, 2014). I will show how to go beyond this by identifying the factorization formula needed to achieve resummation in the intermediate regime, which involve additional collinear-soft modes. Numerical results for the resummed double-differential cross section will be presented.

Primary author

Lisa Zeune (University of Amsterdam)

Presentation Materials