The role of ionization electrons in direct neutralino detection

2004/01/31 by J. D. Vergados, H. Ejiri
Chemistry · Physics and Astronomy · #Atomic physics #Branching (polymer chemistry) #Chemistry #Dark Matter and Cosmic Phenomena #Elastic scattering #Electron #Ion #Ionization #Large Hadron Collider #Neutralino #Nuclear physics #Nucleus #Optics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Scattering #hep-ph

paper · pdf · doi:10.1016/j.physletb.2004.11.085

LaTex, 19 pages, 8 PostScript figures

arxiv created 2004/11/12 · openalex publication_date 2004/12/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

In this paper we estimate the event rates of neutralino-nucleus scattering leading to electron emission by the atomic ionization. We find that the branching ratio for detecting electrons vis a vis the traditional neutralino nucleus elastic scattering sensitively depends on the threshold energy. In the case of a light target and a neutralino mass of 100 GeV we estimate it to be around 10 percent assuming a reasonable threshold energy of 250 eV.

Citations

• Theoretical directional and modulated rates for direct supersymmetric dark matter detection
• New results from the Cryogenic Dark Matter Search experiment
• Review of mathematics, numerical factors, and corrections for dark matter experiments based on elastic nuclear recoil
• Exploring the supersymmetric parameter space by direct search for WIMPs
• Supersymmetric cold dark matter with Yukawa unification
• Higgsino dark matter in a supergravity model with nonuniversal gaugino masses
• Modulation effect in the differential and total rate for supersymmetric dark matter detection
• The EDELWEISS experiment and Dark Matter Direct Detection
• Yukawa unification, b→sγ and bino–stau coannihilation