178 citations · 621 across the 13 of their papers we have counts for
13 papers
Adiabatic response in the Migdal Effect
Stefan Nellen Mondragón, Josef Pradler, Mukul Sholapurkar
The Migdal effect-the prompt ionization induced by a sudden nuclear recoil-is widely used in direct dark matter searches, yet its validity beyond the impulse approximation has rema…
Detectability of dark matter subhalo impacts in Milky Way stellar streams
Junyang Lu, Tongyan Lin, Mukul Sholapurkar +1
Stellar streams are a promising way to probe the gravitational effects of low-mass dark matter (DM) subhalos. In recent years, there has been a remarkable explosion in the number o…
Listening For New Physics With Quantum Acoustics
Ryan Linehan, Tanner Trickle, Christopher R. Conner +4
We present a novel application of a qubit-coupled phonon detector to search for new physics, e.g., ultralight dark matter (DM) and high-frequency gravitational waves. The detector,…
Low-Energy Radiative Backgrounds in CCD-Based Dark-Matter Detectors
Peizhi Du, Daniel Egaña-Ugrinovic, Rouven Essig +1
The reach of sub-GeV dark-matter detectors is at present severely affected by low-energy events from various origins. We present the theoretical methods to compute the single- and…
Anharmonic effects in nuclear recoils from sub-GeV dark matter
Tongyan Lin, Chia-Hsien Shen, Mukul Sholapurkar +1
Direct detection experiments are looking for nuclear recoils from scattering of sub-GeV dark matter (DM) in crystals, and have thresholds as low as ~ 10 eV or DM masses of ~ 100 Me…
Doped Semiconductor Devices for sub-MeV Dark Matter Detection
Peizhi Du, Daniel Egaña-Ugrinovic, Rouven Essig +1
Dopant atoms in semiconductors can be ionized with meV energy depositions, allowing for the design of low-threshold detectors. We propose using doped semiconductor targets…
The Migdal Effect in Semiconductors for Dark Matter with Masses below 100 MeV
Kim V. Berghaus, Angelo Esposito, Rouven Essig +1
Dark matter scattering off a nucleus has a small probability of inducing an observable ionization through the inelastic excitation of an electron, called the Migdal effect. We use…
The Phonon Background from Gamma Rays in Sub-GeV Dark Matter Detectors
Kim V. Berghaus, Rouven Essig, Yonit Hochberg +2
High-energy photons with (MeV) energies from radioactive contaminants can scatter in a solid-state target material and constitute an important low-energy background fo…
Sources of Low-Energy Events in Low-Threshold Dark Matter and Neutrino Detectors
Peizhi Du, Daniel Egana-Ugrinovic, Rouven Essig +1
We discuss several low-energy backgrounds to sub-GeV dark matter searches, which arise from high-energy particles of cosmic or radioactive origin that interact with detector materi…
Exploring New Physics with O(keV) Electron Recoils in Direct Detection Experiments
Itay M. Bloch, Andrea Caputo, Rouven Essig +3
Motivated by the recent XENON1T results, we explore various new physics models that can be discovered through searches for electron recoils in O(keV)-threshold direct-detection exp…
On the relation between Migdal effect and dark matter-electron scattering in isolated atoms and semiconductors
Rouven Essig, Josef Pradler, Mukul Sholapurkar +1
A key strategy for the direct detection of sub-GeV dark matter is to search for small ionization signals. These can arise from dark matter-electron scattering or when the dark matt…
Direct Detection of Strongly Interacting Sub-GeV Dark Matter via Electron Recoils
Timon Emken, Rouven Essig, Chris Kouvaris +1
We consider direct-detection searches for sub-GeV dark matter via electron scatterings in the presence of large interactions between dark and ordinary matter. Scatterings both on e…
Solar Neutrinos as a Signal and Background in Direct-Detection Experiments Searching for Sub-GeV Dark Matter With Electron Recoils
Rouven Essig, Mukul Sholapurkar, Tien-Tien Yu
Direct-detection experiments sensitive to low-energy electron recoils from sub-GeV dark matter (DM) interactions will also be sensitive to solar neutrinos via coherent neutrino-nuc…