Speaker
Dr.
Stefan Berge
(RWTH Aachen)
Description
We investigate the measurement of the CP mixing angle
of the 126 GeV neutral spin-0 Higgs boson in its tau decay
channels. The tau decay channel of the Higgs boson
has the particular advantage that possible CP-violating
contributions alter the Higgs-tau-tau coupling already at
the leading order. Within our proposed method the
di-lepton, lepton-hadron as well as the hadron-hadron
channel of the tau decay can be included in the measurement.
We discuss the prospect of the precision on the CP mixing
angle measured at the LHC and compare with
the expected sensitivity at the LC. We furthermore
derive the distributions of the major background - the contribution
due to virtual Z and photon exchange.
Primary author
Dr.
Stefan Berge
(RWTH Aachen)
Co-authors
Mr.
Sebastian Kirchner
(RWTH Aachen)
Prof.
Werner Dr. Bernreuther
(RWTH Aachen)