QCD Seminars

Sub-Leading and Super-Leading Logarithms in Jet Processes

by Thomas Becher (University of Bern)

Europe/Zurich
4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

100
Show room on map
Description
Jet cross sections at high-energy colliders exhibit intricate patterns of logarithmically enhanced higher-order corrections. In particular, so-called non-global logarithms emerge from soft radiation emitted off energetic partons inside jets. While this is a single-logarithmic effect at lepton colliders, at hadron colliders phase factors in the amplitudes lead to double-logarithmic corrections starting at four-loop order. In my talk I’ll first explain the resummation of non-global logarithms at lepton colliders, where techniques for the resummation of sub-leading logarithms are now becoming available. I’ll then explain the origin of the ``super-leading’’ double logarithms at hadron colliders and discuss their resummation, which was recently achieved for the first time.
 
Videoconference
QCD seminars
Zoom Meeting ID
62752332519
Host
Elena Gianolio
Alternative hosts
Alexander Yohei Huss, Pier Francesco Monni, Michelangelo Mangano, Samuel Abreu, Julien Baglio, Ben Page, Valentin Jonathan Hirschi
Passcode
37431264
Useful links
Join via phone
Zoom URL