The Higgs-Boson Spectrum of the MSSM with CP-Violation at Higher Orders

Date

Jul 17, 2014

Time

4:40 PM - 5:40 PM

Speaker

Sebastian Paßehr

Affiliation

Max-Planck-Institut fuer Physik München

Series

IKTP Institutsseminar

Language

de

Main Topic

Physik

Other Topics

Physik

Description

The neutral and charged Higgs-boson masses of the Minimal Supersymmetric Standard Model (MSSM) with charge–parity (CP) violation at higher orders are presented. These 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 complex parameters. By exploiting these formulas, the Higgs tadpoles and self-energies which are required for the evaluation of the Higgs masses are renormalized 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.

Last modified: Jul 7, 2014, 6:41:17 PM