Title

Magneto-Optic Trapping of β-Decaying 38Km, 37K From an On-Line Isotope Separator

Author Info

J. A. Behr, Simon Fraser University
A. Gorelov, Simon Fraser University
T. Swanson, Simon Fraser University
O. Hausser, Simon Fraser University
K. P. Jackson, TRIUMF - Vancouver
M. Trinczek, Simon Fraser University
U. Giesen, University of Alberta
J. M. D'Auria, Simon Fraser University
R. Hardy, Simon Fraser University
T. Wilson, Simon Fraser University
P. Choboter, Simon Fraser UniversityFollow
F, Leblond, TRIUMF - Vancouver
L. Buchmann, TRIUMF - Vancouver
M. Dombsky, TRIUMF - Vancouver
C. D.P. Levy, TRIUMF - Vancouver
G. Roy, University of Alberta
B. A. Brown, Michigan State University
J. Dilling, Simon Fraser University

Recommended Citation

Published in Physical Review Letters, Volume 79, Issue 3, July 21, 1997, pages 375-378.

NOTE: At the time of publication, the author Paul F. Choboter was not yet affiliated with Cal Poly.

The definitive version is available at https://doi.org/10.1103/PhysRevLett.79.375.

Abstract

A magneto-optic trap (MOT) can provide a well-polarized, backing-free, localized source of radioactive atoms for β-decay experiments. We have trapped approximately 6000 atoms of ³⁸K^m ( t_1/2 = 0.925s) and 2000 atoms of ³⁷K (1.226 s) produced at the TRIUMF on-line separator TISOL in a vapor-cell MOT. We have measured optical isotope shifts and deduced the nuclear charge radii, which show an unusual lack of change at the neutron number N = 20 shell closure. Plans include a search for scalar contributions to the β⁺- ν correlation in the 0⁺→0⁺ decay of ³⁸K^m.

Disciplines

Mathematics

Copyright

1997 American Physical Society.

Publisher statement

This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Physical Society. The following article appeared in Physical Review Letters.