https://doi.org/10.1051/epjconf/201921902002
The n2EDM experiment at the Paul Scherrer Institute
1 University of Sussex, Brighton, UK
2 Normandie Univ, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, Caen, France
3 Paul Scherrer Institute, 5232 Villigen, Switzerland
4 Jagiellonian University, Cracow, Poland
5 Instituut voor Kern- en Stralingsfysica, KU Leuven, 3001 Heverlee, Belgium
6 Laboratory for High Energy Physics and Albert Einstein Center for Fundamental Physics, University of Bern, Bern, Switzerland
7 Laboratoire de Physique Subatomique et de Cosmologie, Grenoble, France
8 University of Kentucky, Lexington, USA
9 Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zürich, Switzerland
10 Physics Department, University of Fribourg, 1700 Fribourg, Switzerland
11 Institut für Physik, Johannes-Gutenberg-Universität, Mainz, Germany
12 Henryk Niedwodniczański Institute for Nuclear Physics, Cracow, Poland
13 Institut für Kernchemie, Johannes-Gutenberg-Universität, Mainz, Germany
14 CSNSM, Université Paris Sud, CNRS/IN2P3, Université Paris Saclay, Orsay-Campus, France
15 Physikalisch Technische Bundesanstalt, Berlin, Germany
a e-mail: peter.koss@kuleuven.be/ ORCiD: 0000-0001-5094-3056
b e-mail: bernhard.lauss@psi.ch / ORCiD: 0000-0002-1986-391X
c e-mail: Present address: Michigan State University, East-Lansing, MI, USA
Published online: 12 December 2019
We present the new spectrometer for the neutron electric dipole moment (nEDM) search at the Paul Scherrer Institute (PSI), called n2EDM. The setup is at room temperature in vacuum using ultracold neutrons. n2EDM features a large UCN double storage chamber design with neutron transport adapted to the PSI UCN source. The design builds on experience gained from the previous apparatus operated at PSI until 2017. An order of magnitude increase in sensitivity is calculated for the new baseline setup based on scalable results from the previous apparatus, and the UCN source performance achieved in 2016.
© The Authors, published by EDP Sciences, 2019
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