International Conference on Exotic Atoms and Related Topics - EXA2017

S. Roccia, on behalf of the nEDM collaboration (http://nedm.web.psi.ch/) At the Paul Scherrer Institute, a collaboration of 15 institutions is conducting an experiment to search for a permanent neutron electric dipole moment. The experiment uses ultracold neutrons (UCN) stored in vacuum at room temperature. This technique provided the last (and best) limit by the RAL/Sussex/ILL collaboration in 2006: 2.9 × 10-26 e cm (90% C.L.). We aim at improving this limit using an upgrade of the same apparatus. The data taking is finishing and an overview of the sensitivity will be given together with a status report on the control of the systematic effects. In particular I will discuss some of the most recent developments and their impact on the sensitivity and conclude with the perspectives of this collaborative work. Also the collaboration is preparing a next generation apparatus, named n2EDM. I will present the key aspects of its design.