Measurement of the {sup 157}Gd(n,{gamma}) reaction with the DANCE {gamma} calorimeter array

Journal Article · Fri Jul 15 04:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.84.014306· OSTI ID:21596552

Chyzh, A; Dashdorj, D ^[1]; Baramsai, B; Mitchell, G E; Walker, C L ^[2]; Becker, J A; Parker, W; Wu, C Y ^[3]; Becvar, F; Kroll, J; Krticka, M ^[4]; Bredeweg, T A; Couture, A; Haight, R C; Jandel, M; O'Donnell, J M; Rundberg, R S; Ullmann, J L; Vieira, D J; Wilhelmy, J B ^[5]

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1. North Carolina State University, Raleigh, North Carolina 27695, USA, andTriangle Universities Nuclear Laboratory, Durham, North Carolina 27708 (United States)
2. North Carolina State University, Raleigh, North Carolina 27695 (United States) andTriangle Universities Nuclear Laboratory, Durham, North Carolina 27708 (United States)
3. Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)
4. Charles University in Prague, Faculty of Mathematics and Physics, V Holesovickach 2, CZ-180 00 Prague 8 (Czech Republic)
5. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

The {sup 157}Gd(n,{gamma}) reaction was measured with the DANCE {gamma} calorimeter (consisting of 160 BaF{sub 2} scintillation detectors) at the Los Alamos Neutron Science Center. The multiplicity distributions of the {gamma} decay were used to determine the resonance spins up to E{sub n}=300 eV. The {gamma}-ray energy spectra for different multiplicities were measured for the s-wave resonances. The shapes of these spectra were compared with simulations based on the use of the DICEBOX statistical model code. Simulations showed that the scissors mode is required not only for the ground-state transitions but also for transitions between excited states.

• OSTI ID: 21596552
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 84; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
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