P. Overmann
Heidelberg University
12 Papers
40 Citations
P. Overmann is an academic researcher from Heidelberg University. The author has contributed to research in topics: CP violation & Lepton. The author has an hindex of 7, co-authored 12 publications.
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Papers
CP violation beyond the standard model and tau pair production in e+ e- collisions
TL;DR: In this paper, it was shown that the CP-violating dipole form factor of the tau lepton can be of the order of α π in units of the length scale set by the inverse Z boson mass.
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CP Nonconservation in Top Quark Production by (Un) Polarized $e^+e^-$ and $\gamma \gamma$ Collisions
TL;DR: In this paper, an investigation of CP violation in (un)polarized $e+e^-\to{\bar t}t$ resulting from an extended neutral Higgs sector or from the minimal SUSY extension of the Standard Model (SM) is presented.
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Probing Higgs Boson - and Supersymmetry-Induced CP Violation
Werner Bernreuther,P. Overmann +1 more
TL;DR: In this article, the production of a top quark pair in e+e-collisions with subsequent semileptonic top and non-leptonic anti-top decay was investigated, and the sensitivity of the best correlation for probing absorptive CP effects is almost independent of the polarization degree.
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CP violation in radiative Z decays
TL;DR: In this article, the authors proposed to test the CP symmetry in the reactions Z → μ+μ−γ and Z → τ+τ−γ. But the experimental analysis of angular correlations allows to determine a set of effective couplings: the electric and weak dipole moments of the muon and the tau lepton.
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A method to determine the electroweak mixing angle from Z decays to tau leptons using optimal observables
Achim Posthaus,P. Overmann +1 more
TL;DR: In this paper, the authors proposed a new method to measure the electroweak mixing angle in Z decays to tau leptons, which yields the largest possible signal-to-noise ratio.
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