We study novel scenarios where thermal dark matter (DM) can be efficiently captured in the Sun and annihilate into boosted dark matter. In these scenario, viable thermal relic DM with masses O(1)-O(100) GeV. Taking advantage of the energetic proton recoils that arise when the boosted DM scatters off matter, we propose a detection strategy which uses large volume terrestrial detectors, such as...
I will discuss a novel search strategy of light boosted dark matter at WIMP direct detection experiments (particularly in Xenon1T) and ProtoDUNE, prototype of DUNE far detector.
This is based on the scenarios of boosted DM (BDM) composed of the heavy and light DM components where the heavier one interacts with the Standard Model sector only through the lighter one.
The expected signal is...
I will show that meter-scale underground experiments such as LUX, PandaX-II, XENON, and PICO could discover dark matter up to the Planck mass and beyond, via new dedicated searches for dark matter scattering multiple times as it transits these detectors. These searches would effectively double the reach of current experiments, and open up significant discovery potential through re-analysis of...
Dark matter that is capable of sufficiently heating a local region in a white dwarf will trigger runaway fusion and ignite a type 1a supernova.
We consider dark matter (DM) candidates that heat through the production of high-energy standard model (SM) particles, and show that such particles will efficiently thermalize the white dwarf medium and ignite supernovae.
Based on the existence of...
We propose a novel method utilizing stellar kinematic data to detect low-mass substructure in the Milky Way’s dark matter halo. By probing characteristic wakes that a passing dark matter subhalo leaves in the phase space distribution of ambient halo stars, we estimate sensitivities down to subhalo masses ∼ 10e7 M_{Sun} or below. The detection of such subhalos would have implications for...
Macroscopic objects made of baryonic matter with sizable strangeness (i.e. many of the valence
quarks are strange quarks, rather than the usual up and down quarks found in protons and neutrons)
may be stable, and may have formed prior to nucleosynthesis thus evading the principal
constraint on baryonic dark matter. We have analyzed the expected signals that would be produced
from the passage...
Dark matter particles traveling through the solar system may scatter off of nuclei in bodies like the Sun and the Earth and become gravitationally trapped. If the dark matter interacts with the Standard Model through a light mediator, the captured dark matter population will annihilate to produce these mediators, and their decays furnish a "smoking gun" signature of dark matter. We examine in...
We investigate the parameter space in which the dark photon may still explain the muon g-2 anomaly. We consider a model of an inelastic dark sector which couples directly to the dark photon. This scenario may lead to semi-visible decays of the dark photon leading to a parameter space in which the dark photon interpretation of the muon g-2 anomaly may still be viable as opposed to both...
