Correlated Signals at the Energy and Intensity Frontiers from Nonabelian Kinetic Mixing

TL;DR

This paper explores how nonabelian kinetic mixing links the mass of a mediating particle to kinetic mixing strength, suggesting correlated signals at the LHC and intensity frontier experiments, and discusses a simple model with its phenomenology.

Contribution

It introduces a novel relation between kinetic mixing strength and mediator mass in nonabelian scenarios, connecting collider and intensity frontier phenomenology.

Findings

Relation between kinetic mixing and mediator mass established

Potential for correlated discoveries at LHC and intensity experiments

Model constraints and phenomenological implications analyzed

Abstract

We show that when a dark abelian gauge sector and SU$(2)_{L}$ kinetically mix it necessarily generates a relation between the kinetic mixing strength and the mass of the mediating particle. Remarkably, this correspondence maps the weak scale directly to the kinetic mixing strengths being probed by modern fixed-target experiments and next generation flavor factories. This illuminates the exciting possibility of correlated discoveries of a new particle at the LHC and a dark photon at intensity frontier experiments. To motivate the scenario, we construct a simple model and explore its phenomenology and constraints.