Composite dark matter from a model with composite Higgs boson

By Maxim Yu. Khlopov, C. Kouvaris. 2008

138 citations recorded by the source corpus.

In a previous paper [Phys. Rev. D77, 065002 (2008)], we showed how the minimal walking technicolor model can provide a composite dark matter candidate, by forming bound states between a -2 electrically charged techniparticle and a {sup 4}He{sup ++}. We studied the properties of these techni-O-helium tOHe 'atoms,' which behave as warmer dark matter rather than cold. In this paper, we extend our work on several different aspects. We study the possibility of a mixed scenario where both tOHe and bound states between +2 and -2 electrically charged techniparticles coexist in the dark matter density. We argue that these newly proposed bound states are solely made of techniparticles, although they behave as weakly interacting massive particles, due to their large elastic cross section with nuclei, can only account for a small percentage of the dark matter density. Therefore, we conclude that within the minimal walking technicolor model, composite dark matter should be mostly composed of tOHe. Moreover, in this paper, we put cosmological bounds in the masses of the techniparticles, if they compose the dark matter density. Finally, we propose within this setup, a possible explanation of the discrepancy between the DAMA/NaI and DAMA/LIBRA findings and the negative results ofmore » CDMS and other direct dark matter searches that imply nuclear recoil measurement, which should accompany ionization.« less

Subfields: Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/fa9703a5b205d7a1512b7a106f4fbca801f3b345

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Citations in the corpus

Cores in warm dark matter haloes: a Catch 22 problem (2012, unknown): “…discussed in the literature (e.g. warm+cold dark matter, Boyarsky et al. (2009d); Macciò et al. (2012) or composite dark matter Khlopov (2006); Khlopov & Kouvaris (2008)) have been created using the same random phases, in order to facilitate the comparison between the different realizations.”
Dark nuclei. I. Cosmology and indirect detection (2014, background): “Popular examples include dark sectors, or sub-sectors, with dark atomic behavior [1–12] or strongly-coupled dark sectors leading to composite DM candidates [13–35], which are the focus of this work.”
Asymmetric WIMP dark matter (2011, background): “In ADM two distinct scenarios are typically considered [15–44].”
Accidental composite dark matter (2015, background): “with supersymmetry [5], with composite [6–9] or partially composite Higgs [10–12], with a mirror-SM sector [13] or quirks [14] or a fourth generation [15] as well as from a phenomenological point of view, in order to realise special situations (such as inelastic DM, asymmetric DM, strongly interacti”