411 citations · 4.9k across the 57 of their papers we have counts for
40 papers · 1 filter
Coherence from interference: a solvable model of sub-GeV dark matter-nucleus scattering
Lynn Lin, Tongyan Lin, Momei Fang
How do dark matter-nucleus interactions transition from the regimes of coherent scattering, where single phonons are produced, to that of individual nuclear recoils? Answering this…
Spin-Dependent Scattering of Sub-GeV Dark Matter: Models and Constraints
Stefania Gori, Simon Knapen, Tongyan Lin +2
We calculate the scattering rate of sub-GeV dark matter in solid-state targets for spin-dependent dark matter -- nucleon interactions. For dark matter particles with mass below 100…
Inelastic Freeze-in
Saniya Heeba, Tongyan Lin, Katelin Schutz
Dark matter (DM) could be a nonthermal relic that freezes in from extremely weak, sub-Hubble annihilation and decay of Standard Model (SM) particles. The case of Dirac DM freezing…
Report of the Topical Group on Particle Dark Matter for Snowmass 2021
Jodi Cooley, Tongyan Lin, W. Hugh Lippincott +71
This report summarizes the findings of the CF1 Topical Subgroup to Snowmass 2021, which was focused on particle dark matter. One of the most important scientific goals of the next…
Dark matter direct detection from the single phonon to the nuclear recoil regime
Brian Campbell-Deem, Simon Knapen, Tongyan Lin +1
In most direct detection experiments, the free nuclear recoil description of dark matter scattering breaks down for masses 100 MeV, or when the recoil energy is comparab…
Searches for light dark matter using condensed matter systems
Yonatan Kahn, Tongyan Lin
Identifying the nature of dark matter (DM) has long been a pressing question for particle physics. In the face of ever-more-powerful exclusions and null results from large-exposure…
DarkELF: A python package for dark matter scattering in dielectric targets
Simon Knapen, Jonathan Kozaczuk, Tongyan Lin
We present a python package to calculate interaction rates of light dark matter in dielectric materials, including screening effects. The full response of the material is parametri…
Dark matter-electron scattering in dielectrics
Simon Knapen, Jonathan Kozaczuk, Tongyan Lin
A number of direct detection experiments are searching for electron excitations created by scattering of sub-GeV dark matter. We present an alternate formulation of dark matter-ele…
The Migdal effect in semiconductors
Simon Knapen, Jonathan Kozaczuk, Tongyan Lin
When a nucleus in an atom undergoes a collision, there is a small probability to inelastically excite an electron as a result of the Migdal effect. In this Letter, we present a fir…
SiC Detectors for Sub-GeV Dark Matter
Sinéad M. Griffin, Yonit Hochberg, Katherine Inzani +3
We propose the use of silicon carbide (SiC) for direct detection of sub-GeV dark matter. SiC has properties similar to both silicon and diamond, but has two key advantages: (i) it…
Plasmon production from dark matter scattering
Jonathan Kozaczuk, Tongyan Lin
We present a first calculation of the rate for plasmon production in semiconductors from nuclei recoiling against dark matter. The process is analogous to bremsstrahlung of transve…
Multiphonon excitations from dark matter scattering in crystals
Brian Campbell-Deem, Peter Cox, Simon Knapen +2
For direct detection of sub-MeV dark matter, a promising strategy is to search for individual phonon excitations in a crystal. We perform an analytic calculation of the rate for li…
TASI lectures on dark matter models and direct detection
Tongyan Lin
These lectures provide an introduction to models and direct detection of dark matter. We summarize the general features and motivations for candidates in the full dark matter mass…
Making dark matter out of light: freeze-in from plasma effects
Cora Dvorkin, Tongyan Lin, Katelin Schutz
Dark matter (DM) could couple to particles in the Standard Model (SM) through a light vector mediator. In the limit of small coupling, this portal could be responsible for producin…
PHOTON-2017 conference proceedings
David d'Enterria, Albert de Roeck, Michelangelo Mangano +77
This document collects the proceedings of the PHOTON 2017 conference ("International Conference on the Structure and the Interactions of the Photon", including the 22th "Internatio…
Directional Detection of Light Dark Matter with Polar Materials
Sinead Griffin, Simon Knapen, Tongyan Lin +1
We consider the direct detection of dark matter (DM) with polar materials, where single production of optical or acoustic phonons gives excellent reach to scattering of sub-MeV DM…
Detection of Light Dark Matter With Optical Phonons in Polar Materials
Simon Knapen, Tongyan Lin, Matt Pyle +1
We show that polar materials are excellent targets for direct detection of sub-GeV dark matter due to the presence of gapped optical phonons as well as acoustic phonons with high s…
Light Dark Matter: Models and Constraints
Simon Knapen, Tongyan Lin, Kathryn M. Zurek
We study the direct detection prospects for a representative set of simplified models of sub-GeV dark matter (DM), accounting for existing terrestrial, astrophysical and cosmologic…
LHC limits on axion-like particles from heavy-ion collisions
Simon Knapen, Tongyan Lin, Hou Keong Lou +1
In these proceedings we use recent LHC heavy-ion data to set a limit on axion-like particles coupling to electromagnetism with mass in the range 10-100 GeV. We recast ATLAS data as…
US Cosmic Visions: New Ideas in Dark Matter 2017: Community Report
Marco Battaglieri, Alberto Belloni, Aaron Chou +248
This white paper summarizes the workshop "U.S. Cosmic Visions: New Ideas in Dark Matter" held at University of Maryland on March 23-25, 2017.
Light Dark Matter in Superfluid Helium: Detection with Multi-excitation Production
Simon Knapen, Tongyan Lin, Kathryn M. Zurek
We examine in depth a recent proposal to utilize superfluid helium for direct detection of sub-MeV mass dark matter. For sub-keV recoil energies, nuclear scattering events in liqui…
A New Flavor of Searches for Axion-Like Particles
Eder Izaguirre, Tongyan Lin, Brian Shuve
We propose new searches for axion-like particles (ALPs) produced in flavor-changing neutral current (FCNC) processes. This proposal exploits the often-overlooked coupling of ALPs t…
Dark Sectors 2016 Workshop: Community Report
Jim Alexander, Marco Battaglieri, Bertrand Echenard +201
This report, based on the Dark Sectors workshop at SLAC in April 2016, summarizes the scientific importance of searches for dark sector dark matter and forces at masses beneath the…
Absorption of light dark matter in semiconductors
Yonit Hochberg, Tongyan Lin, Kathryn M. Zurek
Semiconductors are by now well-established targets for direct detection of MeV to GeV dark matter via scattering off electrons. We show that semiconductor targets can also detect s…