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Analysis method for detecting topological defect dark matter with a global magnetometer network
- Publication Year :
- 2019
- Publisher :
- arXiv, 2019.
-
Abstract
- The Global Network of Optical Magnetometers for Exotic physics searches (GNOME) is a network of time-synchronized, geographically separated, optically pumped atomic magnetometers that is being used to search for correlated transient signals heralding exotic physics. GNOME is sensitive to exotic couplings of atomic spins to certain classes of dark matter candidates, such as axions. This work presents a data analysis procedure to search for axion dark matter in the form of topological defects: specifically, walls separating domains of discrete degenerate vacua in the axion field. An axion domain wall crossing the Earth creates a distinctive signal pattern in the network that can be distinguished from random noise. The reliability of the analysis procedure and the sensitivity of the GNOME to domain-wall crossings are studied using simulated data.
- Subjects :
- Physics
Particle physics
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Field (physics)
Spins
010308 nuclear & particles physics
Magnetometer
Dark matter
FOS: Physical sciences
Astronomy and Astrophysics
01 natural sciences
Topological defect
law.invention
Domain wall (string theory)
Space and Planetary Science
law
0103 physical sciences
Astrophysics - Instrumentation and Methods for Astrophysics
010303 astronomy & astrophysics
Axion
Instrumentation and Methods for Astrophysics (astro-ph.IM)
Gnome
Astrophysics - Cosmology and Nongalactic Astrophysics
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....8794d9ec5628d7e9d3107514b25532ab
- Full Text :
- https://doi.org/10.48550/arxiv.1912.08727