Abstract
The transition matrix elements for coherent and incoherent channels of the neutrinoless μ− ν e− conversion are investigated. The results refer to the 27Al nucleus which has recently been chosen as a target in the MECO experiment at Brookhaven aiming to search for μ-e conversion events with a sensitivity 10-17. These results are compared to those obtained previously for 48Ti and 208Pb targets. We focus on the contributions to the branching ratio ℛμe− originating from scalar, vector and axial vector interactions resulting in conventional extentions of the standard model and minimal supersymmetric models with and without ℛ-parity violation. With our calculations we extract very severe constraints for the flavor violation parameters.
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Kosmas, T., Siiskonen, T. & Suhonen, J. Upper limits for lepton-flavor violation from the exotic μ− ν e− conversion. Czechoslovak Journal of Physics 51, 459–469 (2001). https://doi.org/10.1023/A:1017552016301
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DOI: https://doi.org/10.1023/A:1017552016301