Dark Matter Mass and Anisotropy in Directional Detector

TL;DR

This paper explores how directional dark matter detectors can differentiate between isotropic and anisotropic velocity distributions of dark matter and estimate WIMP mass using Monte Carlo simulations.

Contribution

It introduces a method to identify anisotropy and determine WIMP mass through simulation-based analysis with directional detectors.

Findings

Directional detection can distinguish anisotropic from isotropic velocity distributions.

Monte Carlo simulations effectively estimate WIMP mass.

Potential to improve dark matter characterization with directional detectors.

Abstract

Velocity distribution of dark matter is supposed to be isotropic Maxwell-Boltzmann distribution in most cases, however, other distribution models including anisotropic one are suggested by simulations. Directional direct detection of dark matter is expected to be a hopeful way to discriminate isotropic distribution from anisotropic one. We investigate the possibility to obtain the anisotropy and WIMP mass by Monte-Carlo simulation supposing the directional detector.