Invisible dark matter decays of a non-Standard Model like CP-even scalar boson

Maien Binjonaid

doi:10.1016/j.jksus.2023.103058

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arXiv · 2305.00779

Invisible dark matter decays of a non-Standard Model like CP-even scalar boson

Maien Binjonaid

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Abstract

We investigate two extensions of the standard model that include particle dark matter candidates: the Next-to-Two Higgs Doublet Model and the Next-to-minimal Supersymmetric Standard Model. These models feature a non-Standard Model like CP-even scalar with a sub-TeV mass, denoted by $H_2$, among other particles. At a 13 TeV proton-proton collider, the primary production channel for such scalars is via the fusion of a pair of gluons. Subsequently, these scalars can decay invisibly into a pair of dark matter candidates, which can be dominant. In the supersymmetric model, it is possible for the Lightest Supersymmetric Particle (LSP) and Next-to Lightest Supersymmetric Particle (NLSP) to be mass degenerate, leading to quasi-invisible $H_2$ decays to LSP+NLSP and NLSP+NLSP. We present the predictions of both models for this challenging scenario while ensuring compatibility with recent experimental constraints.

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Maien Binjonaid. 2023-05-01. Invisible dark matter decays of a non-Standard Model like CP-even scalar boson. https://doi.org/10.1016/j.jksus.2023.103058

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