Soft Dipole Resonance in the Neutron-Skin NucleusH6e
| Autor: | Momoko Tanaka, Y. Fujita, Tamio Yamagata, I. Daito, Norihiko Koori, Keiji Takahisa, Atsushi Tamii, T. Inomata, M. Fujiwara, H. Kohri, Shintaro Nakayama, H. Fujimura, Hidetoshi Akimune, Ken-Ichi Fushimi, Hiroyuki Toyokawa |
|---|---|
| Rok vydání: | 2000 |
| Předmět: | |
| Zdroj: | Physical Review Letters. 85:262-265 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.85.262 |
| Popis: | A candidate for a soft dipole resonance, a dipole oscillation mode between a core cluster and a neutron skin, was observed at ${E}_{x}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}4\ifmmode\pm\else\textpm\fi{}1\mathrm{MeV}$ and with a width of $4\ifmmode\pm\else\textpm\fi{}1\mathrm{MeV}$ in ${}^{6}\mathrm{He}$ via the ${}^{6}\mathrm{Li}({}^{7}\mathrm{Li},{}^{7}\mathrm{Be})$ reaction at an incident energy of $65A\phantom{\rule{0ex}{0ex}}\mathrm{MeV}$ and forward scattering angles including $0\ifmmode^\circ\else\textdegree\fi{}$. Its cross section is deduced to be $\ensuremath{\sigma}(0\ifmmode^\circ\else\textdegree\fi{})\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0.9\ifmmode\pm\else\textpm\fi{}0.2\mathrm{mb}/\mathrm{sr}$. This value is comparable to that of the giant dipole resonance simultaneously measured. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|