4 research outputs found
A Global Fit of Non-Relativistic Effective Dark Matter Operators Including Solar Neutrinos
We perform a global fit of dark matter interactions with nucleons using a
non-relativistic effective operator description, considering both direct
detection and neutrino data. We examine the impact of combining the direct
detection experiments CDMSlite, CRESST-II, CRESST-III, DarkSide-50, LUX, LZ,
PandaX-II, PandaX-4T, PICO-60, SIMPLE, SuperCDMS, XENON100, and XENON1T along
with neutrino data from IceCube and ANTARES. While current neutrino telescope
data lead to increased sensitivity compared to underground nuclear scattering
experiments for dark matter masses above 100 GeV, our future projections show
that the next generation of underground experiments will significantly outpace
solar searches for most dark matter-nucleon elastic scattering interactions.Comment: 12+9 pages, 26 figures, Likelihoods available at
https://zenodo.org/records/1003221
Dark Matter from Monogem
As a supernova shock expands into space, it may collide with dark matter
particles, scattering them up to velocities more than an order of magnitude
larger than typical dark matter velocities in the Milky Way. If a supernova
remnant is close enough to Earth, and the appropriate age, this flux of
high-velocity dark matter could be detectable in direct detection experiments,
particularly if the dark matter interacts via a velocity-dependent operator.
This could make it easier to detect light dark matter that would otherwise have
too little energy to be detected. We show that the Monogem Ring supernova
remnant is both close enough and the correct age to produce such a flux, and
thus we produce novel direct detection constraints and sensitivities for future
experiments.Comment: 8 Pages of Text, 3 Figure
Supplementary Data: A global fit of non-relativistic effective dark matter operators including solar neutrinos
<p>The files within contain the data from <a href="https://gambitbsm.org/">GAMBIT</a> scans and the scripts to recreate the plots in Avis Kozar et al. "A global fit of non-relativistic effective dark matter operators including solar neutrinos" using <a href="https://www.python.org/">Python</a> and <a href="https://github.com/GambitBSM/pippi">pippi</a>.</p>
Thermal WIMPs and the scale of new physics: global fits of Dirac dark matter effective field theories
International audienceWe assess the status of a wide class of WIMP dark matter (DM) models in light of the latest experimental results using the global fitting framework GAMBIT. We perform a global analysis of effective field theory (EFT) operators describing the interactions between a gauge-singlet Dirac fermion and the Standard Model quarks, the gluons and the photon. In this bottom-up approach, we simultaneously vary the coefficients of 14 such operators up to dimension 7, along with the DM mass, the scale of new physics and several nuisance parameters. Our likelihood functions include the latest data from Planck, direct and indirect detection experiments, and the LHC. For DM masses below 100 GeV, we find that it is impossible to satisfy all constraints simultaneously while maintaining EFT validity at LHC energies. For new physics scales around 1 TeV, our results are influenced by several small excesses in the LHC data and depend on the prescription that we adopt to ensure EFT validity. Furthermore, we find large regions of viable parameter space where the EFT is valid and the relic density can be reproduced, implying that WIMPs can still account for the DM of the universe while being consistent with the latest data