BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:One-Loop Soft Theorems via Dual Superconformal Symmetry - Edward H
 ughes (Queen Mary\, London)
DTSTART:20160422T150000Z
DTEND:20160422T160000Z
UID:TALK63817@talks.cam.ac.uk
CONTACT:Marco Nardecchia
DESCRIPTION:Controlling infrared divergences in QFT cross-sections has bee
 n an important phenomenological problem for many decades. Recently\, there
  has been renewed theoretical interest\, with the observation that soft th
 eorems emerge as the Ward identities of asymptotic symmetries\, at least a
 t tree level. I shall discuss recent work probing the one-loop corrections
  to subleading soft theorems in the context of N=4 super-Yang-Mills theory
 . In particular\, I shall outline how hidden symmetries may be used to con
 strain the form of such corrections. Further\, I shall present computation
 s which determine the corrections precisely\, revealing them to have a sur
 prisingly simple form. These results may find fruitful application in QCD 
 resummation and the development of holographic theories. I shall conclude 
 by sketching generalisations to gravity amplitudes using the double copy r
 elation\, including some unpublished work.
LOCATION:B1.19\, DAMTP
END:VEVENT
END:VCALENDAR