Determination of the CP parity of Higgs bosons in their tau decay channels at the ILC

Hubert Spiesberger; Stefan Berge; Werner Bernreuther

Determination of the CP parity of Higgs bosons in their tau decay channels at the ILC

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arxiv 1208.1507 v1 pith:YEUJN57L submitted 2012-08-07 hep-ph hep-ex

Stefan Berge , Werner Bernreuther , Hubert Spiesberger This is my paper · ORCID

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keywords decayhiggsbosonmethodapplicablebosonscasechannel

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We investigate a method for determining the CP nature of a neutral Higgs boson or spin-zero resonance at a future linear e+e- collider (ILC) in its tau decay channel. Our procedure is applicable if the production vertex of the Higgs boson can be measured. This will be the case, for example, for the Higgs-strahlung process. We show that the method is feasible for both the leptonic and the hadronic 1-prong tau decay modes.

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The Role of the $t{\bar t}h$ Rest Frame in Direct Top-Quark Yukawa Coupling Measurements
hep-ph 2019-09 conditional novelty 4.0 of 10

Evaluating the b2 and b4 angular observables in the ttbar h rest frame, instead of the lab frame, reduces by about 250 inverse femtobarns the integrated luminosity needed to exclude a pure CP-odd top-quark Yukawa coupling.

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