A Ramsey Neutron-Beam Experiment to Search for Ultralight Axion Dark Matter at the ESS

Autor:	Fierlinger, P., Holl, M., Milstead, D., Santoro, V., Snow, W. M., Stadnik, Y. V.
Rok vydání:	2024
Předmět:	High Energy Physics - Phenomenology Astrophysics - Cosmology and Nongalactic Astrophysics Nuclear Experiment Physics - Instrumentation and Detectors
Druh dokumentu:	Working Paper
Popis:	High-intensity neutron beams, such as those available at the European Spallation Source (ESS), provide new opportunities for fundamental discoveries. Here we discuss a novel Ramsey neutron-beam experiment to search for ultralight axion dark matter through its coupling to neutron spins, which would cause the neutron spins to rotate about the velocity of the neutrons relative to the dark matter halo. We estimate that experiments at the HIBEAM beamline at the ESS can improve the sensitivity to the axion-neutron coupling compared to the current best laboratory limits by up to $2-3$ orders of magnitude over the axion mass range $10^{-22} \, \textrm{eV} - 10^{-16}$ eV. Comment: 8 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2404.15521 Zobrazit plný text záznamu View this record from Arxiv