Particle Physics Seminar, 16 June, 2004

Particle Physics Seminar

Date: Wednesday 2nd February 2005

Title: QCD prerequisites for collider physics: The three-loop splitting functions

Speaker: Dr Andreas Vogt (IPPP Durham)


For the next decade, the high-energy frontier of particle physics will be at colliders with proton beams, especially the LHC. At such machines, quantitative studies of the standard model and of (un-)expected new particles require a precise understanding of the partonic luminosities and of the QCD corrections to the corresponding cross sections. For many important processes, like Higgs production, the second-order QCD effects need to be taken into account. Very recently, a milestone has been reached: the computation of the corresponding three-loop splitting functions governing the evolution of the parton distributions. We discuss why this huge and difficult calculation was necessary, what it took to complete it, and where it leads to.
References: S. Moch, J. Vermaseren and A. Vogt, hep-ph/0403192 and hep-ph/0404111

This Particle Physics Seminar will take place in Seminar Room 2 (room 106), Physics West, at 1315. Tea, coffee and biscuits will be served at 1300.