Holographic Dark Matter and Higgs Models
2008; American Physical Society; Volume: 100; Issue: 22 Linguagem: Inglês
10.1103/physrevlett.100.221802
ISSN1092-0145
Autores Tópico(s)Particle physics theoretical and experimental studies
ResumoWe propose a dark matter candidate within the class of models where electroweak symmetry breaking is triggered by a light composite Higgs boson. In these dual anti--de Sitter/conformal field theory models, the Higgs boson emerges as a holographic pseudo-Goldstone boson, while dark matter can be identified with a stable composite fermion ${X}^{0}$. The effective Lagrangian description of the Higgs and ${X}^{0}$-multiplets, including higher-dimensional operators, can be tested at future colliders (LHC, ILC) and through astrophysical signals (ultrahigh-energy cosmic rays). The expected mass of ${X}^{0}$, ${m}_{{X}^{0}}\ensuremath{\lesssim}4\ensuremath{\pi}f\ensuremath{\simeq}O\text{ }(\mathrm{TeV})$, satisfies the bounds extracted from the cosmological relic density, while the experimental searches for dark matter further constrains the possible models.
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