6533b856fe1ef96bd12b266e

RESEARCH PRODUCT

Infrared singularities in one-loop amplitudes

Stefan WeinzierlChristian ReuschleSebastian BeckerM. Assadsolimani

subject

PhysicsQuantum chromodynamicsNuclear and High Energy PhysicsParticle physicsInfraredSubtractionFOS: Physical sciencesTerm (logic)Atomic and Molecular Physics and OpticsLoop (topology)High Energy Physics - PhenomenologyAmplitudeClassical mechanicsHigh Energy Physics - Phenomenology (hep-ph)Simple (abstract algebra)Gravitational singularity

description

In this talk we discuss a purely numerical approach to next-to-leading order calculations in QCD. We present a simple formula, which provides a local infrared subtraction term for the integrand of a one-loop amplitude. In addition we briefly comment on local ultraviolet subtraction terms and on the required deformation of the contour of integration.

yearjournalcountryeditionlanguage
2010-06-23
10.1016/j.nuclphysbps.2010.08.047http://arxiv.org/abs/1006.4609