Dark matter in classically conformal theories: WIMP and supercooling

Fuente: arXiv
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Autores principales: Xie, Ke-Pan, Zhan, Cheng-Hao
Formato: Preprint
Publicado: 2026
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author Xie, Ke-Pan
Zhan, Cheng-Hao
author_facet Xie, Ke-Pan
Zhan, Cheng-Hao
contents Beyond solving the hierarchy problem, classically conformal (CC) theories naturally accommodate dark matter (DM). In this work, we explore the CC $SU(2)_X$ gauge theory with a triplet dark scalar, uncovering two distinct DM scenarios: weakly interacting massive particle (WIMP) and supercooled DM. The production mechanisms are strongly influenced by the CC model's unique first-order phase transition evolution history, which differs significantly from those in non-conformal models. We obtain the viable parameter space for each scenario and investigate the current constraints and future sensitivities at experiments, demonstrating that gravitational wave signals from the phase transition provide a common detection channel for both the WIMP and supercooled DM regimes.
format Preprint
id arxiv_https___arxiv_org_abs_2603_09126
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Dark matter in classically conformal theories: WIMP and supercooling
Xie, Ke-Pan
Zhan, Cheng-Hao
High Energy Physics - Phenomenology
Cosmology and Nongalactic Astrophysics
Beyond solving the hierarchy problem, classically conformal (CC) theories naturally accommodate dark matter (DM). In this work, we explore the CC $SU(2)_X$ gauge theory with a triplet dark scalar, uncovering two distinct DM scenarios: weakly interacting massive particle (WIMP) and supercooled DM. The production mechanisms are strongly influenced by the CC model's unique first-order phase transition evolution history, which differs significantly from those in non-conformal models. We obtain the viable parameter space for each scenario and investigate the current constraints and future sensitivities at experiments, demonstrating that gravitational wave signals from the phase transition provide a common detection channel for both the WIMP and supercooled DM regimes.
title Dark matter in classically conformal theories: WIMP and supercooling
topic High Energy Physics - Phenomenology
Cosmology and Nongalactic Astrophysics
url https://arxiv.org/abs/2603.09126