Axion field and the quark nugget's formation at the QCD phase transition

Xunyu Liang, Ariel Zhitnitsky

We study a testable dark matter (DM) model outside of the standard WIMP paradigm in which the observed ratio ${\Omega }_{\mathrm{dark}}\simeq {\Omega }_{\mathrm{visible}}$ for visible and dark matter densi…