HAL: in2p3-00626984, version 1

DOI: 10.1016/j.physletb.2011.09.063

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Physics Letters B 704 (2011) 456-460

First observation of trapped high-field seeking ultracold neutron spin states

M. Daum, P. Fierlinger, B. Franke, P. Geltenbort1, L. Goeltl, E. Gutsmiedl, J. Karch, G. Kessler, K. Kirch, H.C. Koch, A. Kraft, T. Lauer, B. Lauss, E. Pierre2, G. Pignol3, D. Reggiani, Yu. Sobolev, T. Zechlau, G. Zsigmond

(2011)

Ultracold neutrons were stored in a volume, using a magnetic dipole field shutter. Radial confinement was provided by material walls. Low-field seeking neutrons were axially confined above the magnetic field. High-field seeking neutrons are trapped inside the magnetic field. They can systematically shift the measured neutron lifetime to lower values in experiments with magnetic confinement.

1:	ILL - Institut Laue-Langevin
2:	LPCC - Laboratoire de Physique Corpusculaire de Caen
3:	LPSC - Laboratoire de Physique Subatomique et de Cosmologie

Subject(s)

:

Physics/Nuclear Experiment

Keyword(s) : Ultracold neutrons – Ultracold neutron storage – Neutron lifetime

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From: Sandrine Guesnon <>

Submitted on: Wednesday, 28 September 2011 09:04:28

Updated on: Wednesday, 19 October 2011 14:15:50