3-Dimensional WIMP Effective Velocity Distribution
Chung-Lin Shan
TL;DR
This paper introduces a 3D effective velocity distribution model for WIMPs, focusing on the velocities relevant to underground detector interactions, supported by Monte Carlo simulations showing asymmetries in scattering.
Contribution
It presents a novel 3D effective velocity distribution for WIMPs that better reflects actual detector interactions, supported by detailed Monte Carlo simulations.
Findings
Demonstrated asymmetric forward-backward scattering asymmetry
Provided numerical results for WIMP-nucleus scattering
Proposed a new velocity distribution model for direct detection
Abstract
In this talk, I discussed a 3-dimensional "effective" velocity distribution of Weakly Interacting Massive Particles (WIMPs), which, instead of the theoretically predicted velocity distribution of "entire" Galactic Dark Matter particles, describes the actual velocity distribution of WIMPs "scattering off" (specified) target nuclei in an underground detector. Based on numerical results carried out by our double Monte Carlo scattering-by-scattering simulation of 3-dimensional elastic WIMP-nucleus scattering, an (asymmetric) "forward-backward asymmetry" was also demonstrated.
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Taxonomy
TopicsDark Matter and Cosmic Phenomena · High-Energy Particle Collisions Research · Astrophysics and Cosmic Phenomena