First measurement of the temperature dependence of muon transfer rate from muonic hydrogen atoms to oxygen

Abstract

We report the first measurement of the temperature dependence of muon transfer rate from $\mu$p atoms to oxygen between 100 and 300 K. Data were obtained from the X-ray spectra of delayed events in gaseous target H${}_2$/O${}_2$ exposed to a muon beam. Based on the data, we determined the muon transfer energy dependence up to 0.1 eV, showing an 8-fold increase in contrast with the predictions of constant rate in the low energy limit. This work set constraints on theoretical models of muon transfer, and is of fundamental importance for the measurement of the hyperfine splitting of $\mu$p by the FAMU collaboration.

arXiv comment11 pages, 4 figure

References in corpus (6)

• Collisional deexcitation of exotic hydrogen atoms in highly excited states. II. Cascade calculations
• Steps towards the hyperfine splitting measurement of the muonic hydrogen ground state: pulsed muon beam and detection system characterization
• Measurement of the Formation Rate of Muonic Hydrogen Molecules
• Differential cross sections for muonic atom scattering from hydrogenic molecules
• Theoretical and computational study of the energy dependence of the muon transfer rate from hydrogen to higher-Z gases
• FAMU: study of the energy dependent transfer rate ${\Lambda }_{\mu p\to \mu O}$

Cited by in corpus (3)

• Measurement of the muon transfer rate from muonic hydrogen to oxygen in the range 70-336 K
• Experimental determination of the energy dependence of the rate of the muon transfer reaction from muonic hydrogen to oxygen for collision energies up to 0.1 eV
• On the energy dependence of the muon transfer rate from hydrogen to oxygen