Abstract
We present the results of precision measurements of dμ spin-flip rates in pure D2, in pure HD gas, and in the non-equilibrium and equilibrium H2+D2 gas mixtures. The experiments were performed at PSI in 1994-1996 using the high pressure ionization chamber from Gatchina as a 100% efficient detector of the charged fusion products. The measurements have been carried out in the temperature range 28-300 K, at gas density of 5% of LHD. In pure deuterium, the measured temperature dependence of the spin-flip rate allowed us to separate the two components (resonant and non-resonant) of the spin-flip processes. From the experiments in H/D mixtures we have measured the non-resonant spin-flip rate in collisions of dμ-atoms with HD molecules. Comparison with the theory revealed considerable disagreement in the case of non-resonant spin-flip in collisions of the dμ-atoms with D2 molecules.
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References
A. Adamczak et al., At. Data Nucl. Data Tables 62(2) (1996) 315 and 329.
M. Faifman et al., MCF 2 (1988) 247 and MCF 4 (1989) 1.
A. Scrinzi et al., Phys. Rev. A 47(6) (1993) 4691-4704.
C. Petitjean et al., Hyp. Interact. 101/102 (1996) 1.
C. Petitjean et al., this issue.
G. Semenchuk et al., this issue.
P. Kammel, in: Muonic Atoms and Molecules (Birkhäuser, Basel, 1993) pp. 111-128.
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Voropaev, N., Balin, D., Breunlich, W. et al. First observation of spin flip in dμ-atoms via formation and back decay of ddμ molecules. Hyperfine Interactions 118, 135–140 (1999). https://doi.org/10.1023/A:1012696805735
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DOI: https://doi.org/10.1023/A:1012696805735