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Phys. Rev. Lett. 88, 172502 (2002) [4 pages]

0gs+  →  21+ Excitations in the Mirror Nuclei 32Ar and 32Si

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P. D. Cottle1, Z. Hu2, B. V. Pritychenko2,3 *, J. A. Church2,3, M. Fauerbach1, T. Glasmacher2,3, R. W. Ibbotson2 †, K. W. Kemper1, L. A. Riley4, H. Scheit2,3 ‡, and M. Steiner2
1Department of Physics, Florida State University, Tallahassee, Florida 32306
2National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
3Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824
4Department of Physics and Astronomy, Earlham College, Richmond, Indiana 47374

Featured in Phys. Rev. Focus Received 13 February 2002; published 12 April 2002

We measured the strength of the 0gs+→21+ excitations in the radioactive mirror nuclei 32Ar and 32Si using the techniques of intermediate-energy Coulomb excitation for 32Ar and inelastic proton scattering in inverse kinematics for 32Si. The 32Ar measurement, taken together with previously existing Coulomb excitation data for 32Si, yields the isoscalar and isovector multipole matrix elements for the 01+→21+ transition between T  =  2 states in the A  =  32 system. The proton scattering measurement for 32Si, when combined with the Coulomb excitation data for this nucleus, yields a ratio of neutron and proton matrix elements, Mn/Mp, for 32Si.


©2002 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.88.172502
DOI: 10.1103/PhysRevLett.88.172502
PACS: 23.20.Js, 23.20.Lv, 25.60.Dz, 27.30.+t

* Present address: Plumtree Software Inc., San Francisco, CA 94111.
† Present address: Brookhaven National Laboratory, Upton, New York 11973.
‡ Present address: Max-Planck-Institut für Kernphysik, Postfach 10 39 80, D-69029 Heidelberg, Germany.

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