Probing CP properties of the Higgs Boson via \boldmath{e^+e^-\to t \bar{t}\phi
R.M. Godbole, P.S. Bhupal Dev, A. Djouadi, M.M. M\"uhlleitner, S.D., Rindani
TL;DR
This paper discusses how future electron-positron colliders can determine the CP properties of the Higgs boson by analyzing cross sections and top polarization in Higgs production with top quark pairs.
Contribution
It demonstrates a method to unambiguously probe the CP quantum numbers of the Higgs boson at future colliders using measurable observables.
Findings
Total cross section measurements can distinguish CP states.
Top polarization provides additional CP-sensitive information.
Method is applicable to future high-energy collider experiments.
Abstract
One of the main endeavors at future high-energy colliders is the search for the Higgs boson(s) and, once found, the probe of the fundamental properties. In particular, the charge conjugation and parity (CP) quantum numbers have to be determined. We show that these are unambiguously accessible at future colliders through the measurement of the total cross section and the top polarization in associated Higgs production with top quark pairs.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · Black Holes and Theoretical Physics