PIRSA:24010089

On the cosmology and terrestrial signals of sexaquark dark matter

Moore, M. (2024). On the cosmology and terrestrial signals of sexaquark dark matter. Perimeter Institute. https://pirsa.org/24010089

Moore, Marianne. On the cosmology and terrestrial signals of sexaquark dark matter. Perimeter Institute, Jan. 23, 2024, https://pirsa.org/24010089 

          @misc{ pirsa_PIRSA:24010089,
            doi = {10.48660/24010089},
            url = {https://pirsa.org/24010089},
            author = {Moore, Marianne},
            keywords = {Particle Physics},
            language = {en},
            title = {On the cosmology and terrestrial signals of sexaquark dark matter},
            publisher = {Perimeter Institute},
            year = {2024},
            month = {jan},
            note = {PIRSA:24010089 see, \url{https://pirsa.org}}
          }

Marianne Moore Massachusetts Institute of Technology (MIT)

DOI 10.48660/24010089
Collection
Talk Type Scientific Series
Subject

Abstract

The sexaquark, a hypothetical stable and neutral six-quark state, has been recently proposed as a dark matter candidate. Here, I argue it is very unlikely sexaquarks could consistently compose more than a billionth of the dark matter abundance for a wide range of scattering cross sections and annihilation rates. To draw these conclusions, I will connect several topics, including the sexaquark freeze-out abundance, dark matter direct detection constraints, neutrino experiments, and accumulation mechanisms for sexaquarks in the Earth. I will show how the sexaquark cosmology enforces that a large contribution to dark matter is only possible with a similarly large antisexaquark population. This population, however, would leave a stark annihilation signal in a detector such as Super-Kamiokande. I will summarize with how sexaquarks as a large component of the dark matter is incompatible with current observational data.

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