X-ray emission during the muonic cascade in hydrogen

Abstract

We report our investigations of X rays emitted during the muonic cascade in hydrogen employing charge coupled devices as X-ray detectors. The density dependence of the relative X-ray yields for the muonic hydrogen lines (K_alpha, K_beta, K_gamma) has been measured at densities between 0.00115 and 0.97 of liquid hydrogen density. In this density region collisional processes dominate the cascade down to low energy levels. A comparison with recent calculations is given in order to demonstrate the influence of Coulomb deexcitation.

5 pages, Tex, 4 figures, submitted to Physical Review Letters

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• Line shape analysis of the K$\beta$ transition in muonic hydrogen
• Muon transfer from deuterium to helium