3 years ago

nEDM experiment at PSI: data-taking strategy and sensitivity of the dataset.

C. Abel, N. J. Ayres, G. Ban, G. Bison, K. Bodek, V. Bondar, E. Chanel, P.-j. Chiu, M. Daum, S. Emmenegger, L. Ferraris-bouchez, P. Flaux, W. C. Griffith P. G. Harris, N. Hild, Y. Kermaidic, K. Kirch, P. A. Koss, J. Krempel, B. Lauss, T. Lefort, Y. Lemiere, A. Leredde, P. Mohanmurthy, M. Musgrave, O. Naviliat-cuncic, D. Pais, F. M. Piegsa, G. Pignol, M. Rawlik, D. Rebreyend, D. Ries, S. Roccia, D. Rozpedzik, P. Schmidt-wellenburg, A. Schnabel, N. Severijns, J. Thorne, R. Virot, J. Voigt, A. Weis, E. Wursten, J. Zejma, G. Zsigmond

We report on the strategy used to optimize the sensitivity of our search for a neutron electric dipole moment at the Paul Scherrer Institute. Measurements were made upon ultracold neutrons stored within a single chamber at the heart of our apparatus. A mercury cohabiting magnetometer together with an array of cesium magnetometers were used to monitor the magnetic field, which was controlled and shaped by a series of precision field coils. In addition to details of the setup itself, we describe the chosen path to realize an appropriate balance between achieving the highest statistical sensitivity alongside the necessary control on systematic effects. The resulting irreducible sensitivity is better than 1*10-26 ecm. This contribution summarizes in a single coherent picture the results of the most recent publications of the collaboration.

Publisher URL: http://arxiv.org/abs/1811.04012

DOI: arXiv:1811.04012v1

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