München 2009 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 12: QCD (Theorie) 2

T 12.7: Vortrag

Dienstag, 10. März 2009, 18:15–18:30, M109

Renormalization-Group Improved Prediction for Higgs Production at Hadron Colliders — •Valentin Ahrens — Universität Mainz

As the search for the Higgs boson is under way, improving the theoretical prediction for the cross section is an important task. In this talk we investigate the gluon-gluon fusion process which is the dominant contribution to the total cross section. We use renormalization-group methods in effective field theory to improve the theoretical prediction for the cross section for Higgs-boson production at hadron colliders. In addition to soft-gluon resummation at N3LL, we also resum enhanced contributions which arise in the analytic continuation of the gluon form factor to time-like momentum transfer.