Parts | Days | Selection | Search | Updates | Downloads | Help

T: Fachverband Teilchenphysik

T 86: Elektroschwache Physik (Theorie) 1

T 86.4: Talk

Wednesday, March 26, 2014, 17:30–17:45, P103

Two loop corrections to the masses of the Higgs bosons of the complex MSSM — Wolfgang Hollik and •Sebastian Paßehr — Max-Planck-Institut für Physik, München, Germany

Results for the top-Yukawa-coupling enhanced two-loop corrections of O(α_t²) to the Higgs-boson sector of the MSSM with complex parameters have been obtained recently. On the one hand, they serve as an important crosscheck of an existing result in the real MSSM, on the other hand, they provide the possibility of new accurate predictions of phase dependencies.

In consideration of the high-precision mass measurement of a Higgs-like particle at the LHC this calculation is a significant ingredient for reducing the theoretical uncertainty of the Higgs-mass prediction in the complex MSSM.

I am going to specify the contributing class of Feynman diagrams and their evaluation for the renormalized self-energies. Finally, I am going to show numerical analyses of these contributions for the Higgs-mass spectrum in the case of real and complex parameters.