Freiburg 2008 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
T: Fachverband Teilchenphysik
T 58: Halbleiterdetektoren V
T 58.6: Vortrag
Freitag, 7. März 2008, 15:20–15:35, KGI-HS 1010
The Neutron Decay Spectrometer aSPECT: Latest Results — •Hans-Friedrich Wirth1, Heinz Angerer1, Fidel Ayala Guardia2, Stefan Baeßler3, Michael Borg2, Klaus Eberhardt4, Ferenc Glück2, Werner Heil2, Igor Konorov1, Gertrud Konrad2, Raquel Munoz Horta2, Gerd Petzoldt1, Martin Simson1, Yury Sobolev2, and Oliver Zimmer1 — 1Physik-Department, Technische Universtität München — 2Institut für Physik, Universität Mainz — 3Department of Physics, University of Virginia, Charlottesville, USA — 4Institut für Kernchemie, Universität Mainz
The neutron decay spectrometer aSPECT was designed to measure accurately the proton spectrum of the free neutron decay. The knowledge of the proton spectrum allows to extract the neutrino electron angular correlation coefficient a, from which we will determine with highest accuracy the ratio λ = gA/gV of the weak coupling constants of the nucleon.
After successful beamtimes in 2005/06 at the FRM-II near Munich we continue the measurements at the ILL in Grenoble.
Latest results and experiences with a new proton detector, which is a silicon drift detector, will be presented.
Supported by BMBF, EU, MLL, and Cluster of Excellence Exc153.