Josef Pradler

TL;DR: The white paper summarizes the workshop "U.S. Cosmic Visions: New Ideas in Dark Matter" held at University of Maryland on March 23-25, 2017.

TL;DR: In this article, the stellar production of vector states V within the minimal model of "dark photons" was studied and it was shown that when the Stuckelberg mass of the dark vector becomes smaller than plasma frequency, the emission rate is dominated by the production of the longitudinal modes of V, and scales as κ 2 m V 2, where κ and m V are the mixing angle with the photon and the mass of a dark state.

TL;DR: In this article, the authors derived constraints on the minimal model of dark matter comprised of long-lived vector states V (dark photons) in the 0.01 −100 keV 100 keV mass range.

TL;DR: This work analyzes the new "dark" vector state V, a massive vector boson mixed with the photon via an angle κ, that in the limit of the small mass mV has its emission spectrum strongly peaked at low energies, and sets the limit on the parameters of this model: κ×mV<3×10(-12) eV.

TL;DR: This work proposes to bypass the kinematic limitations of elastic dark matter nucleus scattering by considering the inelastic channel of photon emission from bremsstrahlung in the nuclear recoil to set the first limits on dark matter below 500 MeV in the plane of dark matter mass and cross section with nucleons.