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γ -ray decay from neutron-bound and unbound states in Mo 95 and a novel technique for spin determination

Physical Review C, Volume 93, No. 2, Article 024303, Year 2016

The emission of γ rays from neutron-bound and neutron-unbound states in Mo95, populated in the Mo94(d,p) reaction, has been investigated. Charged particles and γ radiation were detected with arrays of annular silicon and Clover-type high-purity Germanium detectors, respectively. Utilizing p-γ and p-γ-γ coincidences, the Mo95 level scheme was greatly enhanced with 102 new transitions and 43 new states. It agrees well with shell model calculations for excitation energies below ≈2 MeV. From p-γ coincidence data, a new method for the determination of spins of discrete levels is proposed. The method exploits the suppression of high-angular momentum neutron emission from levels with high spins populated in the (d,p) reaction above the neutron separation energy. Spins for almost all Mo95 levels below 2 MeV (and for a few levels above) have been determined with this method.

Wiedeking, Mathis
1. South Africa, Somerset West Ithemba Laboratory for Accelerator-based Sciences
Krtička, Milan
1. Czech Republic, Prague Charles University
Bernstein, Lee A.
1. United States, Livermore Lawrence Livermore National Laboratory
2. United States, Berkeley University of California, Berkeley
Allmond, J. M.
1. United States, Richmond University of Richmond
2. United States, Oak Ridge Ornl Physics Division
Shamsuzzoha Basunia, M. Shamsuzzoha
1. United States, Berkeley Lawrence Berkeley National Laboratory
Bleuel, Darren L.
1. United States, Livermore Lawrence Livermore National Laboratory
Burke, Jason T.
1. United States, Livermore Lawrence Livermore National Laboratory
Daub, Brian H.
1. United States, Berkeley University of California, Berkeley
2. United States, Livermore Lawrence Livermore National Laboratory
Fallon, Paul J.
1. United States, Berkeley Lawrence Berkeley National Laboratory
Firestone, R. B.
1. United States, Berkeley University of California, Berkeley
2. United States, Berkeley Lawrence Berkeley National Laboratory
Goldblum, Bethany L.
1. United States, Berkeley University of California, Berkeley
Határik, Robert
1. United States, Livermore Lawrence Livermore National Laboratory
Lake, Peter T.
1. United States, Berkeley Lawrence Berkeley National Laboratory
Larsen, Anne Cecilie
1. Norway, Oslo Universitetet I Oslo
Lee, I. Yang
1. United States, Berkeley Lawrence Berkeley National Laboratory
Lesher, Shelly R.
1. United States, Livermore Lawrence Livermore National Laboratory
2. United States, La Crosse University of Wisconsin-la Crosse
Paschalis, Stefanos
1. United States, Berkeley Lawrence Berkeley National Laboratory
Pétri, Marina
1. United States, Berkeley Lawrence Berkeley National Laboratory
Phair, Larry W.
1. United States, Berkeley Lawrence Berkeley National Laboratory
Scielzo, Nicholas D.
1. United States, Livermore Lawrence Livermore National Laboratory
Volya, Alexander S.
1. United States, Tallahassee Florida State University

AFRICAN RESEARCH NEXUS

γ -ray decay from neutron-bound and unbound states in Mo 95 and a novel technique for spin determination

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AFRICAN RESEARCH NEXUS

γ -ray decay from neutron-bound and unbound states in Mo 95 and a novel technique for spin determination

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African Research Nexus

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