Scattering of SIMPlectic Dark Pions

TL;DR

This paper investigates the scattering behavior of pseudo-Nambu-Goldstone bosons in a specific gauge theory to better understand SIMP dark matter models, emphasizing non-perturbative effects and first-principle verification.

Contribution

It provides the first-principle analysis of scattering properties in a SIMP dark matter model based on Sp(4) gauge theory, advancing beyond traditional ChPT approaches.

Findings

Updated scattering properties in the most common channel.

Insights into non-perturbative signatures of the dark sector.

Future directions for verifying SIMP models.

Abstract

We study the scattering of two identical pNGBs (pseudo-Nambu-Goldstone Bosons) in Sp(4) gauge theory with two mass-degenerate Dirac fermions in the pseudo-real fundamental representation. This theory serves as a realization of a SIMP (Strongly Interacting Massive Particles) Dark Matter model. SIMPs are an exciting dark matter candidate as they make use of a new relic density mechanism and provide potential solutions to the so-called small-scale structure problems. These theories are realized by a confining dark sector which includes non-perturbative signatures. While most of the research focuses on ChPT (Chiral Perturbation Theory), first-principle verification of these models is indispensable. In these proceedings we give an update on scattering properties in the most common channel and give an outlook on the projects that lie ahead.