Topological dark matter from the theory of composite electroweak symmetry breaking

TL;DR

This paper explores the possibility of electroweak baryons as dark matter candidates within composite electroweak symmetry breaking models, analyzing their masses and scattering cross sections based on an effective Lagrangian.

Contribution

It provides a detailed calculation of electroweak baryon properties and their viability as dark matter, considering the influence of the S parameter and boson mass ratios.

Findings

Electroweak baryons can be viable dark matter candidates.

Masses and cross sections depend on the S parameter and boson mass ratios.

Even number of technicolor is favored for dark matter viability.

Abstract

The lightest electroweak baryon as a topological object is investigated by using a general effective Lagrangian of composite electroweak symmetry breaking and the spin-independent electroweak baryon-nucleon scattering cross section is calculated. We explicitly show the masses of the electroweak baryons and the cross section as functions of the Peskin-Takeuchi $S$ parameter and the ratio of the masses of axial-vector and vector composite bosons. We find that it is acceptable to regard the electroweak baryon as a dark matter candidate and the even number of technicolor is favored.