3 papers
cs.DS2021
Clustering Mixtures with Almost Optimal Separation in Polynomial Time
Jerry Li, Allen Liu
We consider the problem of clustering mixtures of mean-separated Gaussians in high dimensions. We are given samples from a mixture of identity covariance Gaussians, so that the…
hep-ph2021
Resonant Scattering between Dark Matter and Baryons: Revised Direct Detection and CMB Limits
Xingchen Xu, Glennys R. Farrar
Traditional dark matter models, eg. WIMPs, assume dark matter is weakly coupled to the standard model so that elastic scattering between dark matter and baryons can be described pe…
hep-ph2020
Dark Matter Particle in QCD
Glennys R. Farrar, Zihui Wang, Xingchen Xu
We report on the possibility that the Dark Matter particle is a stable, neutral, as-yet-undiscovered hadron in the standard model. The existence of a compact color-flavor-spin sing…