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Medientyp:
Elektronischer Konferenzbericht
Titel:
Spin Manipulation with an RF Wien-Filter at COSY
Beteiligte:
Mey, Sebastian
[Verfasser:in];
Gebel, Ralf
[Verfasser:in]
Erschienen:
SISSA, 2015
Erschienen in:Trieste : SISSA 029 pp. (2015). ; Proceedings, XVIth International Workshop in Polarized Sources, Targets, and Polarimetry ; Proceedings, XVIth International Workshop in Polarized Sources, Targets, and Polarimetry XVIth International Workshop in Polarized Sources, Targets, and Polarimetry, PSTP2015, Bochum, Germany, 2015-09-14 - 2015-09-18
Sprache:
Englisch
Entstehung:
Anmerkungen:
Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
Beschreibung:
The JEDI Collaboration (Jülich Electric Dipole Moment Investigations) is developing tools for the measurement of permanent EDMs (Electric Dipole Moments) of charged, light hadrons indedicated storage rings. The Standard Model predicts unobservably small magnitudes for these EDMs. A non-vanishing value due to CP violating sources beyond the Standard Model may bedetected by measuring a tiny vertical polarization buildup in a beforehand horizontally polarized beam. This technique requires a spin tune modulation by an RF Dipole without inducing anycoherent beam oscillations.In the course of 2014, a prototype RF (Radio-Frequency) ExB-Dipole has been successfully commissioned and tested at COSY (the Cooler Synchrotron in Jülich, Germany). The force of aradial magnetic field is canceled out by a vertical electric one. In this configuration, the dipole fields form a Wien-Filter that directly rotates the particles’ polarization vector and thus allowsthe determination of the beam and spin dynamics behavior of such a device. We verified that the RF Dipole can be used to continuously rotate the vertical polarization vector of a 970 MeV/cdeuteron beam without exciting any coherent beam oscillations.