Low-energy muon and muonium beam source at Fermilab

Conference · Mon Jul 01 04:00:00 EDT 2024 · JACoW

DOI:https://doi.org/10.18429/JACoW-IPAC2024-WEPR36· OSTI ID:2477641

Kaplan, Daniel ^[1]; Johnstone, Carol ^[2]; Lynch, Kevin ^[2]; Phillips, Thomas ^[3]; Roberts, Thomas ^[3]

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1. IIT, Chicago
2. Fermilab
3. MUONS Inc., Batavia

We describe a high-efficiency source of muonium that can be transported as a beam in vacuum provides opportunities for fundamental muon and precision physics measurements such as sensitive searches for symmetry violation. Although PSI is currently the world leader, the intense 800-MeV PIP-II linac beam at Fermilab could provide world-class low-energy muon and muonium beams, with unparalleled intensity, driving the next generation of precision muon-based physics experiments at the intensity frontier. However, it is critical to initiate the prerequisite R&D now to prepare for the PIP-II era. A low-energy secondary muon line recently installed in an operating facility (the MeV Test Area, which utilizes the intense 400-MeV Fermilab Linac beam) could support the required R&D, and potentially compete for new physics in the immediate term, if approved. This beamline was developed for μ– and will need to be re-optimized for surface μ+ production and transport, making it also suitable for muon spin rotation physics––a unique research and industrial application for which no U.S. facility exists, and whose facilities are oversubscribed worldwide.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 2477641
• Report Number(s): FERMILAB-CONF-24-0662-AD; oai:inspirehep.net:2813265
• Conference Information: Journal Name: JACoW Journal Volume: IPAC2024
• Country of Publication: United States
• Language: English

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