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SUMMARY:Webs! - Chris White (Glasgow)
DTSTART:20101202T160000Z
DTEND:20101202T170000Z
UID:TALK26052@talks.cam.ac.uk
CONTACT:Kazuki Sakurai
DESCRIPTION:It has long been known that soft (i.e. low-momentum) gauge bos
 ons lead to\nunstable results in perturbation theory\, in both abelian and
  non-abelian\ngauge theories. In non-abelian theories\, the structure of s
 oft gluon\ncorrections can be described to all orders in perturbation theo
 ry in terms\nof a special class of Feynman diagrams called webs\, for the 
 case in which\nonly two coloured particles are involved in a scattering pr
 ocess. In this\nseminar\, I discuss the generalisation of this result to m
 ultiparticle\nscattering\, revealing new mathematical structures in QCD. T
 he results have\napplications to the resummation of large logarithms in QC
 D phenomenology\,\nbut may also be of interest to people studying N=4 Supe
 r-Yang-Mills\ntheory. The talk is based on arXiv:1008.0098.\n
LOCATION:MR15\, CMS
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