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Phys. Rev. C 78, 041602(R) (2008) [5 pages]

The (d,2He) reaction on 96Mo and the double-β decay matrix elements for 96Zr

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H. Dohmann1, C. Bäumer1,*, D. Frekers1, E.-W. Grewe1, M. N. Harakeh2, S. Hollstein1, H. Johansson3,†, L. Popescu4,‡, S. Rakers1,§, D. Savran2,5, H. Simon3, J. H. Thies1, A. M. van den Berg2, H. J. Wörtche2, and A. Zilges6
1Institut für Kernphysik, Westfälische Wilhelms-Universität, D-48149 Münster, Germany
2Kernfysisch Versneller Instituut, University of Groningen, NL-9747 AA Groningen, The Netherlands
3Gesellschaft für Schwerionenforschung, D-63291 Darmstadt, Germany
4Vakgroep Subatomaire en Stralingsfysica, Universiteit Gent, B-9000 Gent, Belgium
5Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
6Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany

Received 9 April 2008; published 15 October 2008

The 96Mo(d,2He)96Nb charge-exchange reaction was investigated at an incident energy of Ed=183.5 MeV. An excitation-energy resolution of 110 keV was achieved. The experiment was performed at KVI, Groningen, using the magnetic spectrometer BBS at three angular positions: 0°,2.5°, and 6°. We found that below 6 MeV almost the entire Gamow-Teller (GT+) strength is concentrated in a single state at 0.69 MeV excitation energy. As 96Mo is the daughter of the ββ decay nucleus 96Zr, the present result provides information about the nuclear matrix elements active in the 2νββ decay of 96Zr.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.78.041602
DOI:
10.1103/PhysRevC.78.041602
PACS:
25.45.Kk, 25.55.-e, 23.40.Hc, 27.60.+j

*Present address: Philips Research Europe, Weisshausstr. 2, 52066 Aachen, Germany.

†Present address: Fundamental Fysik, Chalmers Tekniska Högskola, S-412 96, Göteborg, Sweden.

‡Present address: KVI, University of Groningen, NL-9747 AA Groningen.

§Present address: EADS Astrium Space Transportation GmbH, TE53 Avionics Engineering, 28199 Bremen, Germany.

 
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