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arXiv · 2405.00108

Flavor Phenomenology of Light Dark Vectors

Jordi Folch Eguren·Sophie Klingel·Emmanuel Stamou·Mustafa Tabet·Robert Ziegler
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Abstract

Light dark matter with flavor-violating couplings to fermions may be copiously produced in the laboratory as missing energy from decays of SM particles. Here we study the effective Lagrangian of a light dark vector with generic dipole or vector couplings. We calculate the resulting two-body decay rates of mesons, baryons and leptons as a function of the dark vector mass and show that existing experimental limits probe UV scales as large as $10^{12} \,\mathrm{GeV}$. We also derive the general RGEs in order to constrain the flavor-universal UV scenario, where all flavor violation arises radiatively proportional to the CKM matrix.

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Jordi Folch Eguren, Sophie Klingel, Emmanuel Stamou, Mustafa Tabet, Robert Ziegler. 2024-04-30. Flavor Phenomenology of Light Dark Vectors. https://arxiv.org/abs/2405.00108

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