2014/06/16 by William Detmold, Matthew McCullough, Andrew Pochinsky · 1 citation
Physics and Astronomy · #hep-lat #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.90.114506
published as Phys. Rev. D 90, 114506 (2014) · 40 pages, 26 figures
arxiv created 2014/06/16 · arxiv updated 2014/12/31
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.