Feasibility study of the GeV-energy muon source based on the High Intensity Heavy-Ion Accelerator Facility

Le résumé fourni par la source

Generating a monoenergetic, high-energy muon beam using accelerator facilities can be very attractive for many purposes, for example, improving muon tomography currently limited by the low flux and wide energy spread of cosmic ray muons, and searching for muon related new physics beyond the Standard Model. One potential accelerator facility is the High Intensity Heavy-Ion Accelerator Facility (HIAF), which is currently under construction in Huizhou City, China. Considering the projectile energy and beamline length, a high-intensity and GeV-energy muon flux could be produced and delivered by the High energy FRagment Separator beamline of the HIAF facility. In this paper, the flux intensity and purity of the muon beam based on HIAF are discussed in detail. For the μ + beam, the highest muon yield reaches 8.2 × 10 6 μ / s with a purity of approximately 2% at a momentum of 3.5 GeV/c; meanwhile, for the μ − beam, the maximum muon yield is 4.2 × 10 6 μ / s with a purity of around 20% at a momentum of 1.5 GeV / c . The results also indicate that, for muon beams with an energy of several GeV, by applying a suitable purification strategy, we can get a muon beam with a purity of 100% and an intensity of the order of 10 5 μ / s .

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.