The FAMU experiment at RAL to study the muon transfer rate from hydrogen to other gases

2018/11/14 by FAMU Collaboration
#Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det)

paper · doi:10.48550/arxiv.1811.05908

Abstract

The aim of the FAMU experiment is to realize the first measurement of the hyperfine splitting (hfs) in the 1S state of muonic hydrogen ΔE^hfs_1S, by using the RIKEN-RAL intense pulsed muon beam and a high-energy mid-infrared tunable laser. This requires a detailed study of the muon transfer mechanism at different temperatures and hence at different epithermal states of the muonic system. The experimental setup involves a cryogenic pressurized gas target and a detection system based on silicon photomultipliers-fiber beam hodoscopes and high purity Germanium detectors and Cerium doped Lanthanium Bromide crystals, for X-rays detection at energies around 100 keV. Simulation, construction and detector performances of the FAMU apparatus at RAL are reported in this paper.

Related

• The fast X-ray detector system of the FAMU experiment at RAL
• First operation of the FAMU experiment at the RIKEN-RAL high intensity muon beam facility
• First FAMU observation of muon transfer from mu-p atoms to higher-Z elements
• The MuX Project
• Enhancement of the laser-induced excitation probability of the hyperfine ground state of muonic hydrogen by a multipass cavity setup