6533b7d7fe1ef96bd1268feb
RESEARCH PRODUCT
Analysis method for detecting topological defect dark matter with a global magnetometer network
Szymon PustelnyArne WickenbrockYun Chang ShinDmitry BudkerDmitry BudkerDmitry BudkerVictor LebedevTheo ScholtesTheo ScholtesMadeline MonroyI. A. SulaiHector Masia-roigAntoine WeisVincent DumontJoseph A. SmigaYannis K. SemertzidisDerek F. Jackson KimballJason StalnakerDongok KimPerrin SeguraZoran D. Grujićsubject
PhysicsParticle physicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Field (physics)Spins010308 nuclear & particles physicsMagnetometerDark matterFOS: Physical sciencesAstronomy and Astrophysics01 natural sciencesTopological defectlaw.inventionDomain wall (string theory)Space and Planetary Sciencelaw0103 physical sciencesAstrophysics - Instrumentation and Methods for Astrophysics010303 astronomy & astrophysicsAxionInstrumentation and Methods for Astrophysics (astro-ph.IM)GnomeAstrophysics - Cosmology and Nongalactic Astrophysicsdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-12-18 |