2022
DOI: 10.1007/jhep02(2022)047
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Dark matter freeze-out during SU(2)L confinement

Abstract: 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 con… Show more

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Cited by 3 publications
(2 citation statements)
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“…This approach can be motivated by our lack of knowledge of the cosmology during the epoch in which the DM relic abundance in these models is produced (see e.g. [42][43][44][45][46][47]). In this case, one should be aware that different assumptions about the dark matter production would typically select only a small portion of the parameter space considered.…”
Section: Snowmass2021 Cosmic Frontier Dark Matter Direct Detection To...mentioning
confidence: 99%
“…This approach can be motivated by our lack of knowledge of the cosmology during the epoch in which the DM relic abundance in these models is produced (see e.g. [42][43][44][45][46][47]). In this case, one should be aware that different assumptions about the dark matter production would typically select only a small portion of the parameter space considered.…”
Section: Snowmass2021 Cosmic Frontier Dark Matter Direct Detection To...mentioning
confidence: 99%
“…Rolling to the minimum releases the initial vacuum energy as cold dark matter, whose abundance depends on the physics of the dark matter potential as well as the initial displacement of the field. While both of these mechanisms in principle connect the observed dark matter abundance to specific regions of parameter space, it is worth bearing in mind that additional new physics beyond the dark matter itself can change the expectations for early cosmology, and thus the predicted abundance as a function of the model parameters [33][34][35][36][37][38][39].…”
Section: Dark Mattermentioning
confidence: 99%