Coulomb excitation of 26Ne

D. Beaumel, J. Gibelin, T. Motobayashi, N. Aoi, H. Baba, Y. Blumenfeld, Z. Elekes, S. Fortier, N. Frascaria, N. Fukuda, T. Gomi, K. Ishikawa, Y. Kondo, T. Kubo, V. Lima, T. Nakamura, A. Saito, Y. Satou, E. Takeshita, S. TakeuchiT. Teranishi, Y. Togano, A. M. Vinodkumar, Y. Yanagisawa, K. Yoshida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Coulomb excitation of the exotic neutron-rich nucleus 26Ne on a 208Pb target was measured at 58 A.MeV in order to search for low-lying E1 strength above the neutron emission threshold. Data were also taken on an Al target to estimate the nuclear contribution. The radioactive beam was produced by fragmentation of a 95 A.MeV Ar beam delivered by the RIKEN Research Facility. The set-up included a NaI gamma-ray array, a charged fragment hodoscope and a neutron wall. Using the invariant mass method in the 25Ne+n channel, we observe a sizable amount of E1 strength between 6 and 10 MeV excitation energy. By performing a multipole decomposition of the differential cross-section, a reduced dipole transition probability of B(E1)=0.49±0.16 e2fm2 is deduced. For the first time, the decay pattern of low-lying strength in a neutron-rich nucleus is measured.

Original languageEnglish
Title of host publicationTOURS SYMPOSIUM ON NUCLEAR PHYSICS VI
Pages192-198
Number of pages7
DOIs
Publication statusPublished - Apr 4 2007
EventTOURS SYMPOSIUM ON NUCLEAR PHYSICS VI - Tours, France
Duration: Sep 5 2006Sep 8 2006

Publication series

NameAIP Conference Proceedings
Volume891
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherTOURS SYMPOSIUM ON NUCLEAR PHYSICS VI
CountryFrance
CityTours
Period9/5/069/8/06

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Keywords

  • Coulomb excitations
  • Giant resonances

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Beaumel, D., Gibelin, J., Motobayashi, T., Aoi, N., Baba, H., Blumenfeld, Y., Elekes, Z., Fortier, S., Frascaria, N., Fukuda, N., Gomi, T., Ishikawa, K., Kondo, Y., Kubo, T., Lima, V., Nakamura, T., Saito, A., Satou, Y., Takeshita, E., ... Yoshida, K. (2007). Coulomb excitation of 26Ne. In TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI (pp. 192-198). (AIP Conference Proceedings; Vol. 891). https://doi.org/10.1063/1.2713517