The Higgs-Boson Spectrum of the Minimal Supersymmetric Standard Model with CP-Violation at Higher Orders
by
Sebastian Passehr(DESY)
→
Europe/Berlin
semiar room 2, building 2A (DESY Hamburg)
semiar room 2, building 2A
DESY Hamburg
Description
The spectrum of the Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM) with charge–parity (CP) violation at higher orders is presented. Perturbative corrections are required for an accurate theoretical prediction of the Higgs-boson masses, in view of the experimental precision of the mass measurement for a Higgs-like particle which has been discovered at the Large Hadron Collider (LHC).
At first, the lowest-order relations for the Higgs-boson masses and mixings are derived with particular care for the possibility of complex MSSM parameters. For the evaluation of the Higgs masses at higher orders, tadpoles and self-energies are required. Their renormalization is presented at the one-loop order. If some of the involved parameters are complex, all three neutral Higgs bosons mix, generally violating CP symmetry.
Finally, a numerical analysis of the Higgs-boson masses and mixings including the recently computed leading top-Yukawa-coupling enhanced two-loop corrections is presented.
