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Study of neutron rich nucleus $^{25}$F via single-step fragmentation

Abstract : The structure of nucleus 25F was studied by use of in-beam -ray spectroscopy of the fragmentation of a 36S beam. The emitted rays were detected by BaF2 detectors. In the -ray spectrum obtained a wide bump between 3 and 4.5 MeV energy was observed corresponding to a set of rays, including their first and second escape peaks. In order to resolve the peaks and to determine the high-energy structure of 25F, the experimental spectra were compared to Geant4 simulations taking the complex line shape into account. The observed decomposition of the bump is in good agreement with the results of the two-step fragmentation experiment [Zs. Vajta et al., submitted to Phys. Rev. C]. Furthermore, an additional transition was observed at 2140(30) keV.
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Submitted on : Monday, March 25, 2013 - 3:31:53 PM
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Zs. Vajta, D. Sohler, Zs. Dombradi, F. Azaiez, O. Sorlin, et al.. Study of neutron rich nucleus $^{25}$F via single-step fragmentation. Zakopane Conference on Nuclear Physics "Extremes of the Nuclear Landscape", Aug 2012, Zakopane, Poland. pp.553-557, ⟨10.5506/APhysPolB.44.553⟩. ⟨in2p3-00804461⟩



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