Abstract
We propose a novel experimental setup for the determination of the leptonic CP-violating phase δ using the decay at rest (DAR) of μ + from a single source located at distances of 10 and 30 km from two 20 kton organic liquid scintillator detectors. The μ + are created by bombarding a target with a 9 mA beam of 800 MeV protons. With this proposal δ can be determined with a precision of 20 (15) degrees in 6 (12) years. In contrast with the DAEδALUS project, only a single source is required and it runs with a duty factor limited only by maintenance requirements. As a result 9 mA is the maximum instantaneous current, greatly reducing both the technological challenges and the costs.
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Ciuffoli, E., Evslin, J. & Zhang, X. The leptonic CP phase from muon decay at rest with two detectors. J. High Energ. Phys. 2014, 51 (2014). https://doi.org/10.1007/JHEP12(2014)051
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DOI: https://doi.org/10.1007/JHEP12(2014)051