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arXiv · 1406.4116

Dark Nuclei II: Nuclear Spectroscopy in Two-Colour QCD

William Detmold·Matthew McCullough·Andrew Pochinsky
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Abstract

We consider two-colour QCD with two flavours of quarks as a possible theory of composite dark matter and use lattice field theory methods to investigate nuclear spectroscopy in the spin $J=0$ and $J=1$ multi-baryon sectors. We find compelling evidence that $J=1$ systems with baryon number $B=2,3$ (and their mixed meson-baryon counterparts) are bound states - the analogues of nuclei in this theory. In addition, we estimate the $σ$-terms of the $J=0$ and $J=1$ single baryon states which are important for the coupling of the theory to scalar currents that may mediate interactions with the visible sector.

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William Detmold, Matthew McCullough, Andrew Pochinsky. 2014-06-16. Dark Nuclei II: Nuclear Spectroscopy in Two-Colour QCD. https://doi.org/10.1103/physrevd.90.114506

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