Dark nuclei. II. Nuclear spectroscopy in two-color QCD

We consider two-color QCD with two flavors 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 multibaryon sectors. We find compelling evidence that J = 1 systems with baryon number B = 2,3 (and...

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Bibliographic Details
Main Authors: Detmold, William, Pochinsky, Andrew, McCullough, Matthew P.
Other Authors: Massachusetts Institute of Technology. Center for Theoretical Physics
Format: Article
Language:English
Published: American Physical Society 2015
Online Access:http://hdl.handle.net/1721.1/92721
https://orcid.org/0000-0002-0400-8363
Description
Summary:We consider two-color QCD with two flavors 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 multibaryon 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.