Dresden 2013 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 11: Elektroschwache Physik (Theorie) 2
T 11.6: Vortrag
Montag, 4. März 2013, 18:00–18:15, WIL-A120
Theoretical status of the measurement of the Higgs self-coupling — Julien Baglio1, Abdelhak Djouadi2,3, •Ramona Groeber1, Margarete Muehlleitner1, and Jeremie Quevillon2 — 1Institut fuer Theoretische Physik, KIT, 76128 Karlsruhe, Germany — 2Laboratoire de Physique Theorique, U. Paris-Sud and CNRS, 91405 Orsay, France — 3Theory Unit, Department of Physics, CERN, 1211 Geneva 23, Switzerland
Now that the Higgs boson has been observed, as a next step its properties must be determined. Besides the measurement of the Higgs couplings to gauge particles and fermions and the determination of its spin and CP properties, the Higgs self-couplings have to be extracted. In this way the Higgs potential can be reconstructed and it can be ultimately tested if the particle masses are generated through electroweak symmetry breaking. The triple Higgs coupling is accessible in Higgs pair production. In this talk the main processes including higher order QCD corrections will be presented and theoretical uncertainties will be estimated. The prospects of extracting the triple Higgs coupling will be discussed.