Flavor Phenomenology of Light Dark Vectors

2024/04/30 by Jordi Folch Eguren, Sophie Klingel, Eguren, Jordi Folch +7 · 2 citations
Chemistry · Engineering · #Advanced Chemical Sensor Technologies #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Various Chemistry Research Topics

paper · pdf · doi:10.48550/arxiv.2405.00108

openalex publication_date 2024/04/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

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 10¹² 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.

Cited by

• Phenomenology of Non-Abelian Gauge and Goldstone Bosons in a U(2) Flavor Model
• The influence of invisible light particles on Λ_b → ΛE_miss

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