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On the nuclear dependence of the mu-e conversion branching ratio

T. S. Kosmas
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Abstract

The variation of the coherent branching ratio $R_{μe}$ (ratio of the $μ^-\to e^-$ reaction rate divided by the total muon-capture rate) through the periodic table is studied by using exact muon wave functions. It was found that, by using very heavy nuclei (e.g. \nuc{197}Au, the SINDRUM II target) as $μ^-\to e^-$ conversion stopping-targets, the above ratio is favored by a factor of about four to five than by using light ones (e.g. \nuc{48}Ti, chosen as PRIME target).

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T. S. Kosmas. 2001-08-17. On the nuclear dependence of the mu-e conversion branching ratio. https://doi.org/10.1016/s0168-9002(03)00686-7

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