MC calculations for the nEDM experiment systematics

K. Bodek , Z. Chowdhuri , M. Daum , M. Fertl , B. Franke , E. Gutsmiedl , R. Henneck , M. Horras , M. Kasprzak , K. Kirch , S. Kistryn , A. Kozela , J. Krempel , B. Lauss , A. Mtchedlishvili , F. Piegsa , G. Pignol (1) , D. Rebreyend (1) , S. Roccia , P. Schmidt-Wellenburg , J. Zejma , J. Zenner , G. Zsigmond

1 LPSC - Laboratoire de Physique Subatomique et de Cosmologie

The nEDM experiment hosted at the Paul Scherrer Institute is the flagship project at the new ultracold neutron facility. Estimations of systematic effects for the determination of the neutron electric dipole moment play an important role in this project. Experimental studies are supported by Monte Carlo simulations using the MCUCN code. Here we briefly present first results on the experimental benchmark of the model, and on the evaluation of the storage time dependence of the centre of mass of UCN in the nEDM precession chamber. Such time dependence calculations will serve as consistency tests for future measurements involving field gradient corrections of the Ramsey resonance frequency. An analytic benchmark of the spinhandling routines will also be shown.

Mots clés: Neutron electric dipole moment; Ultracold neutrons

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

K. Bodek, Z. Chowdhuri, M. Daum, M. Fertl, B. Franke, et al.. MC calculations for the nEDM experiment systematics. 2nd International Workshop on the Physics of fundamental Symmetries and Interactions - PSI2010, Oct 2010, Villigen, Switzerland. pp.259-267, ⟨10.1016/j.phpro.2011.06.046⟩. ⟨in2p3-00643050⟩