Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-07-22
PoS EFT09:002,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
Presented at the International Workshop on Effective Field Theories: from the pion to the upsilon, February 2-6 2009, Valencia
Scientific paper
In this talk I give an overview of soft collinear effective theory (SCET), including a discussion of some recent advances. First, I briefly cover the foundation upon which SCET is built, namely QCD factorization, and review the theoretical framework of SCET. Next, I cover some recent calculations involving SCET. Since there are more interesting results than I can cover, I have picked four that that I find particularly exciting. The first two topics are dynamical threshold enhancements in Drell-Yan and resummation of higgs production at the LHC. Both topics center on the resummation of large Sudakov logarithms, however, for each there is a twist. In the case of threshold enhancements in Drell-Yan, it is partonic, not hadronic logarithms that are summed. In the case of higgs production at the LHC, the twist is that the logarithms are of a time-like scale. The third topic highlighted is electroweak corrections at high energy. In particular the electroweak Sudakov form factor. Finally, I end by discussing generalized event shapes in $e^+e^-$ annihilation.
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