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Search for Low-Lying Dipole Strength in the Neutron-Rich Nucleus $^{26}$Ne

Abstract : In order to search for low energy El strength, Coulomb excitation of the neutron rich nucleus 26Ne was studied at RIKEN Accelerator Research Facility. A 58 MeV/A secondary beam of 26Ne impinged on lead and aluminum target. In this complete kinematics measurement, we measured the energy and position of the charged fragments with a silicon strip/Si(Li) telescope, and the neutrons resulting from the decay of 26Ne with a multi-element plastic wall. The photons which can be emitted from excited states are detected using a 4pi NaI array. The analysis is still in progress but it so far shows strength between 8 and 10 MeV excitation energy that can be related to a pygmy dipole resonance
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http://hal.in2p3.fr/in2p3-00141022
Contributor : Suzanne Robert <>
Submitted on : Wednesday, April 11, 2007 - 11:15:11 AM
Last modification on : Wednesday, September 16, 2020 - 4:08:10 PM

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J. Gibelin, D. Beaumel, T. Motobayashi, N. Aoi, H. Baba, et al.. Search for Low-Lying Dipole Strength in the Neutron-Rich Nucleus $^{26}$Ne. International Symposium on Exotic Nuclear Systems ENS'05, Jun 2005, Debrecen, Hungary. pp.198-201, ⟨10.1063/1.2140651⟩. ⟨in2p3-00141022⟩

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