Search for Low-Lying Dipole Strength in the Neutron-Rich Nucleus 26Ne

Journal Article · Mon Nov 21 04:00:00 EST 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2140651· OSTI ID:20719715

Gibelin, J ^[1]; Beaumel, D; Blumenfeld, Y; Fortier, S; Frascaria, N; Lima, V ^[1]; Motobayashi, T; Aoi, N; Baba, H; Fukuda, N; Gomi, T; Kubo, T; Takeuchi, S; Yanagisawa, Y; Yoshida, K ^[2]; Elekes, Z ^[3]; Ishikawa, K; Kondo, Y; Nakamura, T; Satou, Y ^[4]

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1. Institut de Physique Nucleaire, IN2P3-CNRS, F-91406 Orsay (France)
2. RIKEN, Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)
3. Institute of Nuclear Research of the Hungarian Academy of Sciences, PO Box 51, H-4001 Debrecen (Hungary)
4. Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551 (Japan); and others

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 4{pi} 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.

• OSTI ID: 20719715
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 802; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM
COULOMB EXCITATION
DIPOLES
EXCITED STATES
GIANT RESONANCE
LEAD
MEV RANGE 01-10
MEV RANGE 10-100
NEON 26
NEUTRON-RICH ISOTOPES
NEUTRONS
PHOTONS
RILAC
SECONDARY BEAMS
SILICON
TELESCOPES