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Test of the Brink-Axel Hypothesis for the Pygmy Dipole Resonance.
Martin, D; von Neumann-Cosel, P; Tamii, A; Aoi, N; Bassauer, S; Bertulani, C A; Carter, J; Donaldson, L; Fujita, H; Fujita, Y; Hashimoto, T; Hatanaka, K; Ito, T; Krugmann, A; Liu, B; Maeda, Y; Miki, K; Neveling, R; Pietralla, N; Poltoratska, I; Ponomarev, V Yu; Richter, A; Shima, T; Yamamoto, T; Zweidinger, M.
Affiliation
  • Martin D; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
  • von Neumann-Cosel P; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
  • Tamii A; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Aoi N; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Bassauer S; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
  • Bertulani CA; Department of Physics and Astronomy, Texas A&M University-Commerce, Commerce, Texas 75429, USA.
  • Carter J; School of Physics, University of the Witwatersrand, Johannesburg 2050, South Africa.
  • Donaldson L; School of Physics, University of the Witwatersrand, Johannesburg 2050, South Africa.
  • Fujita H; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Fujita Y; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Hashimoto T; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Hatanaka K; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Ito T; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Krugmann A; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
  • Liu B; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Maeda Y; Faculty of Engineering, Miyazaki University, Miyazaki 889-2192, Japan.
  • Miki K; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Neveling R; iThemba LABS, Somerset West 7129, South Africa.
  • Pietralla N; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
  • Poltoratska I; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
  • Ponomarev VY; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
  • Richter A; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
  • Shima T; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Yamamoto T; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Zweidinger M; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
Phys Rev Lett ; 119(18): 182503, 2017 Nov 03.
Article in En | MEDLINE | ID: mdl-29219585
ABSTRACT
The gamma strength function and level density of 1^{-} states in ^{96}Mo have been extracted from a high-resolution study of the (p[over →], p[over →]^{'}) reaction at 295 MeV and extreme forward angles. By comparison with compound nucleus γ decay experiments, this allows a test of the generalized Brink-Axel hypothesis in the energy region of the pygmy dipole resonance. The Brink-Axel hypothesis is commonly assumed in astrophysical reaction network calculations and states that the gamma strength function in nuclei is independent of the structure of the initial and final state. The present results validate the Brink-Axel hypothesis for ^{96}Mo and provide independent confirmation of the methods used to separate gamma strength function and level density in γ decay experiments.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2017 Document type: Article Affiliation country: Alemania
Fulltext
Add to My VHL
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XML
PubMed Links
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2017 Document type: Article Affiliation country: Alemania