Dark top partner
Haiying Cai, Giacomo Cacciapaglia
TL;DR
This paper explores dark matter candidates in composite Higgs models with extended symmetries, focusing on the role of dark top partners and their phenomenological implications.
Contribution
It introduces a framework connecting mesonic dark matter with dark top partners within specific composite Higgs models, explaining dark parity origin in UV theory.
Findings
Dark top partner masses are constrained to multi-TeV scale.
Dark parity can be explained in the UV theory of fundamental CHMs.
Phenomenological constraints impact the parameter space of these models.
Abstract
Composite Higgs models with extended symmetries can feature mesonic dark matter candidates. In fundamental CHMs, the origin of dark parity can be explained in the UV theory. Combined with top partial compositeness, this leads to non-chiral Yukawa interaction connecting mesonic DM with one dark top partner and one SM top. We examine the DM phenomenology in SU(6)/SO(6) and SU(6)/Sp(6) CHMs with the presence of dark top partners. Phenomenological constraints require the mass of top partner in even parity to be of the multi-TeV order.
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Taxonomy
TopicsDark Matter and Cosmic Phenomena · Particle physics theoretical and experimental studies · Cosmology and Gravitation Theories