Constraints on Lightly Ionizing Particles from CDMSlite
  The Cryogenic Dark Matter Search low ionization threshold experiment
(CDMSlite) achieved efficient detection of very small recoil energies in its
germanium target, resulting in sensitivity to Lightly Ionizing Particles (LIPs)
in a previously unexplored region of charge, mass, and velocity parameter
space. We report first direct-detection limits calculated using the optimum
interval method on the vertical intensity of cosmogenically-produced LIPs with
an electric charge smaller than $e/(3\times10^5$), as well as the strongest
limits for charge $\leq e/160$, with a minimum vertical intensity of
$1.36\times10^{-7}$\,cm$^{-2}$s$^{-1}$sr$^{-1}$ at charge $e/160$. These
results apply over a wide range of LIP masses (5\,MeV/$c^2$ to 100\,TeV/$c^2$)
and cover a wide range of $\beta\gamma$ values (0.1 -- $10^6$), thus excluding
non-relativistic LIPs with $\beta\gamma$ as small as 0.1 for the first time.
