Collider Signatures of Near-Continuum Dark Matter

Steven Ferrante; Seung J. Lee; Maxim Perelstein

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arXiv · 2306.13009

Collider Signatures of Near-Continuum Dark Matter

Steven Ferrante·Seung J. Lee·Maxim Perelstein

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Abstract

In this paper we study a near-continuum dark matter model, in which dark sector consists of a tower of closely spaced states with weak-scale masses. We construct a five-dimensional model which naturally realizes this spectrum. The dark matter is described by a bulk field, which interacts with the brane-localized Standard Model sector via a Z portal. We then study collider signatures of this model. Near-continuum dark matter states produced in a collider undergo cascade decays, resulting in events with high multiplicity of jets and leptons, large missing energy, and displaced vertices. A custom-built Monte Carlo tool described in this paper allows for detailed simulation of the signal events. We present results of such simulations for the case of electron-positron collisions.

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Steven Ferrante, Seung J. Lee, Maxim Perelstein. 2023-06-22. Collider Signatures of Near-Continuum Dark Matter. https://arxiv.org/abs/2306.13009

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