Level density and $γ$-ray strength in $^{27,28}$Si
| dc.creator | Guttormsen, M. | |
| dc.creator | Melby, E. | |
| dc.creator | Rekstad, J. | |
| dc.creator | Schiller, A. | |
| dc.creator | Siem, S. | |
| dc.creator | Loennroth, T. | |
| dc.creator | Voinov, A. | |
| dc.date | 2002-03-20 | |
| dc.date | 2002-09-23 | |
| dc.date.accessioned | 2026-07-07T10:54:28Z | |
| dc.date.available | 2026-07-07T10:54:28Z | |
| dc.description | A method to extract simultaneously level densities and $γ$-ray transmission coefficients has for the first time been tested on light nuclei utilizing the $^{28}$Si($^3$He,$αγ)^{27}$Si and $^{28}$Si($^3$He,$^3$He'$γ)^{28}$Si reactions. The extracted level densities for $^{27}$Si and $^{28}$Si are consistent with the level densities obtained by counting known levels in the respective nuclei. The extracted $γ$-ray strength in $^{28}$Si agrees well with the known $γ$-decay properties of this nucleus. Typical nuclear temperatures are found to be $T\sim 2.4$ MeV at around 7 MeV excitation energy. The entropy gap between nuclei with mass number $A$ and $A\pm 1$ is measured to be $δS\sim 1.0 k_B$, which indicates an energy spacing between single-particle orbitals comparable with typical nuclear temperatures. | |
| dc.description | Totally 17 pages, 11 figures | |
| dc.identifier | https://arxiv.org/abs/nucl-ex/0203013 | |
| dc.identifier | http://arxiv.org/abs/nucl-ex/0203013 | |
| dc.identifier | J.Phys.G29:263-278,2003 | |
| dc.identifier | doi:10.1088/0954-3899/29/2/303 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/185811 | |
| dc.subject | Nuclear Experiment | |
| dc.title | Level density and $γ$-ray strength in $^{27,28}$Si | |
| dc.type | text |