Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10724391 | Physics Letters B | 2008 | 5 Pages |
Abstract
The 8Li + 4He â 11B + n reaction at Ecm<2 MeV is a process of relevant astrophysical interest for which a remarkable experimental discrepancy between inclusive and exclusive cross-section measurements exists. In this Letter, a new inclusive neutron measurement at Ecm=1.05±0.16 MeV is given. The radioactive 8Li beam was delivered by the EXCYT facility. The cross section was determined by a low-background measurement of the time correlation between the 8Li projectile arrival to the target and the following neutron capture in a threshold-less 4Ï thermalization counter. This new data strengthens the reliability of the previous inclusive reaction cross-section data and altogether are consistent with a significant population of 11B levels at high excitation energy.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
M. La Cognata, A. Del Zoppo, P. Figuera, A. Musumarra, R. Alba, S. Cherubini, N. Colonna, L. Cosentino, V. Crucillà , A. Di Pietro, M. Gulino, L. Lamia, M.G. Pellegriti, R.G. Pizzone, S.M.R. Puglia, G.G. Rapisarda, C. Rolfs, S. Romano, A. Tumino,