Beta-decay experiments of neutral atoms in a magneto-optical trap
Dilling, J. ; Behr, J.A. ; Gorelov, A. ; Swanson, T. ; Häusser, O. ; Melconian, D. ; Jackson, K.P. ; Trinczek, M. ; Giesen, U. ; D’Auria, J.M.
Springer
Published 1998
Springer
Published 1998
| ISSN: |
1572-9540
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|---|---|
| Keywords: |
beta-decay ; standard model test ; optical cooling and trapping atoms
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Physics
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| Notes: |
Abstract Magneto optical traps (MOT) allow the cooling and storing of neutral atoms in a volume of a few cubic millimeters by use of laser beams and a magnetic field. Such devices offer new and exciting opportunities for precision measurements of radioactive isotopes. Here we present experiments performed with a double-MOT system coupled to the on-line separator TISOL at TRIUMF/Vancouver, Canada. For the first time, the Β-decay of free atoms stored in such a device could be observed. We report on coincidence measurements between beta-particles and the argon recoils in the decay of 37K and 38rm{m}}K. The charge state ratios of the recoil-ions were deduced by Time-Of-Flight separation in an acceleration field. The final goal of those investigations is a precision test of the Standard Model by measuring the –nu-correlation parameter a.
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| Type of Medium: |
Electronic Resource
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| URL: |