The Muonic Portal to Vector Dark Matter:connecting precision muon physics, cosmology, and colliders
Alexander Belyaev, Luca Panizzi, Nakorn Thongyoi, Franz Wilhelm

TL;DR
This paper introduces the Muonic Portal to Vector Dark Matter, linking muon physics, cosmology, and collider experiments, and explores its implications for dark matter, muon g-2, and collider signatures.
Contribution
It proposes a minimal extension of the Standard Model with a new gauge symmetry and vector-like muons, analyzing its viability for dark matter and muon g-2 explanations.
Findings
Light vector dark matter can evade CMB constraints via velocity suppression.
Sub-GeV dark matter near scalar resonance fits muon g-2 anomalies with small gauge coupling.
Collider searches set a lower bound of about 850 GeV on vector-like muon masses.
Abstract
We present a comprehensive study of the Muonic Portal to Vector Dark Matter (MPVDM), a minimal extension of the Standard Model featuring a new gauge symmetry and vector-like muons that mediate interactions between the dark sector and the muon sector. We show that the MPVDM can simultaneously reproduce the observed dark matter relic abundance and accommodate scenarios consistent with the current experimental determination of the muon anomalous magnetic moment, , as well as scenarios allowing for a non-zero new physics contribution to . One of the key results of this work is the identification of a generic off-resonance velocity-suppression mechanism that allows light ( GeV) vector dark matter to evade stringent CMB constraints near . A five-dimensional parameter scan combining cosmological, collider, and…
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Dark Matter and Cosmic Phenomena · Computational Physics and Python Applications
