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arXiv · 1809.04805

Pseudoscalar decays to gauge bosons at the LHC and at a future 100 TeV collider

Abdesslam Arhrib·Rachid Benbrik·Jaouad El Falaki·Marco Sampaio·Rui Santos
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Abstract

We discuss the search for a CP-odd scalar decaying into gauge bosons in the framework of a CP-conserving two-Higgs doublet model (2HDM) and of a 2HDM extended with a vector-like quark (VLQ) at the Large Hadron Collider and at a future 100 TeV collider. The rate of decay of a pseudoscalar to $Z$-bosons could be important to ascertain the CP-nature of the scalars in the model. In the 2HDM $A \to ZZ$ will be extremely hard to detect even at a future 100 TeV $pp$ collider while in the 2HDM+VLQ this decay can be probed even during the present LHC run. We further discuss all decays of the pseudoscalar into gauge bosons at the LHC and at a future 100 TeV collider in the alignment limit where the lightest scalar is the 125 GeV Higgs with SM-like couplings to the fermions and gauge bosons.

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Abdesslam Arhrib, Rachid Benbrik, Jaouad El Falaki, Marco Sampaio, Rui Santos. 2018-09-13. Pseudoscalar decays to gauge bosons at the LHC and at a future 100 TeV collider. https://doi.org/10.1103/physrevd.99.035043

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