462 citations · 3.9k across the 76 of their papers we have counts for
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Exothermic and Endothermic Inelastic Dark Matter Interpretations at LZ: Sideband Constraints and Future Prospects
James B. Dent, Jayden L. Newstead
The LZ experiment has extended its nuclear-recoil search to 270 keV and reports a single nuclear-recoil-like event, LZ230616, at keV, in a region with negligible expected…
Nuclear and electron scattering by neutrinos and dark matter in condensed systems
James B. Dent, Barry A. Friedman, Jayden L. Newstead +1
Low-threshold dark matter detectors, in particular cryogenic detectors based on dielectric materials, are among the best tools for probing sub-GeV dark matter masses. In the coming…
Bragg-Primakoff Axion Photoconversion in Crystal Detectors
James B. Dent, Bhaskar Dutta, Adrian Thompson
Axions and axion-like pseudoscalar particles with dimension-5 couplings to photons exhibit coherent Primakoff scattering with ordered crystals at keV energy scales, making for a na…
Low-Mass dark matter (in)direct detection with inelastic scattering
Nicole F. Bell, James B. Dent, Bhaskar Dutta +2
We revisit the detection of luminous dark matter in direct detection experiments. In this scenario, dark matter scatters endothermically to produce an excited state, which decays t…
Coherent elastic neutrino-nucleus scattering: Terrestrial and astrophysical applications
M. Abdullah, H. Abele, D. Akimov +272
Coherent elastic neutrino-nucleus scattering (CENS) is a process in which neutrinos scatter on a nucleus which acts as a single particle. Though the total cross section is large…
Sensitivity to Dark Sector Scales from Gravitational Wave Signatures
James B. Dent, Bhaskar Dutta, Sumit Ghosh +2
We consider gravitational wave signals produced by a first-order phase transition in a theory with a generic renormalizable thermal effective potential of power law form. We find t…
Observing the Migdal effect from nuclear recoils of neutral particles with liquid xenon and argon detectors
Nicole F. Bell, James B. Dent, Rafael F. Lang +2
In recent years, dark matter direct detection experiments have spurred interest in the Migdal effect, where it is employed to extend their sensitivity to lower dark matter masses.…
Cosmic-ray upscattered inelastic dark matter
Nicole F. Bell, James B. Dent, Bhaskar Dutta +4
Light non-relativistic components of the galactic dark matter halo elude direct detection constraints because they lack the kinetic energy to create an observable recoil. However,…
Pathfinder for a High Statistics Search for Missing Energy In Gamma Cascades
James B. Dent, Bhaskar Dutta, Andrew Jastram +7
We investigate the feasibility of a high statistics experiment to search for invisible decay modes in nuclear gamma cascades using 200 kg of %36 Cs(Tl) scintillators that are prese…
Solar Gamma Ray Constraints on Dark Matter Annihilation to Secluded Mediators
Nicole F. Bell, James B. Dent, Isaac W. Sanderson
We consider the indirect detection of dark matter that is captured in the Sun and subsequently annihilates to long-lived dark mediators. If these mediators escape the Sun before de…
Low-mass inelastic dark matter direct detection via the Migdal effect
Nicole F. Bell, James B. Dent, Bhaskar Dutta +3
We consider searches for the inelastic scattering of low-mass dark matter at direct detection experiments, using the Migdal effect. We find that there are degeneracies between the…
Gamma Ray Signals from Cosmic Ray Scattering on Axion-Like Particles
James B. Dent, Bhaskar Dutta, Jayden L. Newstead +4
Dark Matter (DM) may be comprised of axion-like particles (ALPs) with couplings to photons and the standard model fermions. In this paper we study photon signals arising from cosmi…
Present and future status of light dark matter models from cosmic-ray electron upscattering
James B. Dent, Bhaskar Dutta, Jayden L. Newstead +2
Non-relativistic Dark Matter (DM) can be accelerated by scattering on high-energy cosmic-ray (CR) electrons. This process leads to a sub-population of relativistic or semi-relativi…
Flipped Quartification and a composite -quark
James B. Dent, Thomas W. Kephart, Heinrich Päs +1
An alternative "flipped" version of the quartification model is obtained by rearrangement of the particle assignments. The model has two standard (trinification) families and one f…
Inverse Primakoff Scattering as a Probe of Solar Axions at Liquid Xenon Direct Detection Experiments
James B. Dent, Bhaskar Dutta, Jayden L. Newstead +1
We show that XENON1T and future liquid xenon (LXe) direct detection experiments are sensitive to axions through the standard operators due to inverse-Primakoff…
Explaining the XENON1T excess with Luminous Dark Matter
Nicole F. Bell, James B. Dent, Bhaskar Dutta +3
We show that the excess in electron recoil events seen by the XENON1T experiment can be explained by relatively low-mass Luminous Dark Matter candidate. The dark matter scatters in…
New Directions for Axion Searches via Scattering at Reactor Neutrino Experiments
James B. Dent, Bhaskar Dutta, Doojin Kim +4
Searches for pseudoscalar axion-like-particles (ALPs) typically rely on their decay in beam dumps or their conversion into photons in haloscopes and helioscopes. We point out a new…
Bounds on Cosmic Ray-Boosted Dark Matter in Simplified Models and its Corresponding Neutrino-Floor
James B. Dent, Bhaskar Dutta, Jayden L. Newstead +1
We study direct detection bounds on cosmic ray-upscattered dark matter in simplified models including light mediators. We find that the energy dependence in the scattering cross se…
The Migdal Effect and Photon Bremsstrahlung in effective field theories of dark matter direct detection and coherent elastic neutrino-nucleus scattering
Nicole F. Bell, James B. Dent, Jayden L. Newstead +2
Dark matter direct detection experiments have limited sensitivity to light dark matter (below a few GeV), due to the challenges of lowering energy thresholds for the detection of n…
Catching p via s wave with indirect detection
Steven J. Clark, James B. Dent, Bhaskar Dutta +1
For many dark matter models, the annihilation cross section to two-body final states is difficult to probe with current experiments because the dominant annihilation channel is vel…
Coherent Elastic Neutrino Nucleus Scattering (CENS) as a probe of through kinetic and mass mixing effects
Mohammad Abdullah, James B. Dent, Bhaskar Dutta +3
We examine the current constraints and future sensitivity of Coherent Elastic Neutrino-Nucleus Scattering (CENS) experiments to mixing scenarios involving a which int…
Accelerator and reactor complementarity in coherent neutrino scattering
James B. Dent, Bhaskar Dutta, Shu Liao +3
We study the complementarity between accelerator and reactor coherent elastic neutrino-nucleus elastic scattering (CENS) experiments for constraining new physics in the form of…
Enhancing Dark Matter Annihilation Rates with Dark Bremsstrahlung
Nicole F. Bell, Yi Cai, James B. Dent +2
Many dark matter interaction types lead to annihilation processes which suffer from p-wave suppression or helicity suppression, rendering them subdominant to unsuppressed s-wave pr…
Probing light mediators at ultra-low threshold energies with coherent elastic neutrino-nucleus scattering
James B. Dent, Bhaskar Dutta, Shu Liao +3
Light neutral mediators, with mass GeV, are common features of extensions to the Standard Model (SM). Current astrophysical and terrestrial experiments have constraine…