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Dark matter freeze-out during SU(2)L confinement

Howard, Jessica N.; Ipek, Seyda; Tait, Tim M.P.; Turner, Jessica

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Jessica N. Howard

Seyda Ipek

Tim M.P. Tait


We explore the possibility that dark matter is a pair of vector-like fermionic SU(2)L doublets and propose a novel mechanism of dark matter production that proceeds through the confinement of the weak sector of the Standard Model. This confinement phase causes the Standard Model doublets and dark matter to confine into pions. The dark pions freeze-out before the weak sector deconfines and generate a relic abundance of dark matter. We solve the Boltzmann equations for this scenario to determine the scale of confinement and constituent dark matter mass required to produce the observed relic density. We determine which regions of this parameter space evade direct detection, collider bounds, and successfully produce the observed relic density of dark matter. For a TeV scale pair of vector-like fermionic SU(2)L doublets, we find the weak confinement scale to be ∼ 700 TeV.


Howard, J. N., Ipek, S., Tait, T. M., & Turner, J. (2022). Dark matter freeze-out during SU(2)L confinement. Journal of High Energy Physics, 2022(2), Article 47.

Journal Article Type Article
Acceptance Date Jan 23, 2022
Online Publication Date Feb 7, 2022
Publication Date 2022
Deposit Date May 4, 2022
Publicly Available Date May 5, 2022
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2022
Issue 2
Article Number 47


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Copyright Statement
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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