Tübingen 2003 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 45: Instrumentation und Anwendungen VI

HK 45.4: Talk

Thursday, March 20, 2003, 18:00–18:15, C

Measurement of the Depolarization of Polarized Ultra-Cold Neutrons — •Axel Pichlmaier¹, E. A. Adles², Th. Bowles³, J. Butterworth⁴, P. Geltenbort⁴, I. Krasnoshekova⁵, M. Lasakhov⁵, C.-Y. Liu³, M. Makela⁶, R. Pattie⁶, A. Saunders³, A. P. Serebrov⁵, V. Vasiliev⁵, R. B. Vogelaar⁶, and Albert Young² — ¹Paul Scherrer Institut, CH-5232 Villigen/PSI, Switzerland — ²North Carolina State University, Raleigh, NC, 27695, USA — ³Los Alamos National Laboratory, Los Alamos, NM 87545, USA — ⁴Institut Laue Langevin, F-38042 Grenoble Cedex 9, France — ⁵Petersburg Nuclear Physics Institut, 188300 Gatchina, Russia — ⁶Virginia Polytechnic Institute and State University, Blacksburg, VA, 24961, USA

The depolarization of polarized ultra-cold neutrons (UCN) is a critical parameter for various experiments (e. g. a measurement of the asymmetry parameters in neutron β-decay or the neutron electric dipole moment). We have measured for the first time the depolarization and transmission of UCN through quartz tubes coated with diamond like carbon.

The experiment will be discussed and first results will be presented.