Excited State Muon Transfer in Hydrogen/Deuterium Mixtures

Lauss, B.; Ackerbauer, P.; Breunlich, W. H.; Gartner, B.; Jeitler, M.; Kammel, P.; Marton, J.; Prymas, W.; Zmeskal, J.; Chatellard, D.; Egger, J. -P.; Jeannet, E.; Daniel, H.; Hartmann, F. J.; Kosak, A.; Petitjean, C.

Excited State Muon Transfer in Hydrogen/Deuterium Mixtures

Authors

Description

We report the first direct observation of excited state muon transfer in hydrogen/deuterium mixtures by direct measurement of q_1s, the probability that a mu-p atom, which is initially formed in an excited state, reaches the 1s ground state. The dependence of q_1s on deuterium concentration c_d was measured for two different densities at cryogenic temperatures using charge coupled devices (CCDs) to detect the muonic X rays. First results based on the analysis of the K_alpha-lines of the two isotopes are presented.
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