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| Title: | 12C(6Li, d)16O and16O(6Li, d)20Ne at E(6Li) = 42 MeV |
| Author(s): | Becchetti, Fredrick D
Janecke, J.
Thorn, C. E. |
| Issue Date: | 31-Jul-1978 |
| Publisher: | Elsevier |
| Citation: | Becchetti, F. D., Janecke, J., Thorn, C. E. (1978/07/31)."12C(6Li, d)16O and16O(6Li, d)20Ne at E(6Li) = 42 MeV." Nuclear Physics A 305(1): 313-332. <http://hdl.handle.net/2027.42/22565> |
| Abstract: | Spectra up to 25 MeV excitation in 16O have been obtained from 12C(6Li, d) at 42 MeV bombarding energy. Angular distributions have been measured for ten states, including two J[pi] = 1- states of astrophysical interest, and appear to be mostly direct [alpha]-transfer. In addition, data for 16(6Li, d)20Ne(g.s.) and 20Ne*(2+) have been obtained. Excitation energies and widths have been extracted for states in 16O, including several states at Ex > 15 MeV. Alpha spectroscopic factors, S[alpha], and reduced [alpha]-widths, [gamma]2[alpha] and [theta]2[alpha] have been deduced for levels in 16O and 20Ne and compared with theoretical predictions. The J[pi] = 1- levels in 16O at 7.12 and 9.6 MeV excitation appear to have comparable S[alpha] and [gamma]2[alpha] values, viz. [gamma]2[alpha] (7.12 MeV)/[gamma]2[alpha] (9.6 MeV) = 0.6+1.7-0.3. Both states have apparent S[alpha] and [gamma]2[alpha] values smaller than that for the J[pi] = 2+ "[alpha]-cluster" state at 6.9 MeV however. Furthermore, the observed line shape for the J[alpha] = 1-, 9.6 MeV level indicates [Gamma]c.m. = 400 +/- 50 keV, which is substantially less than the accepted width for this level [Gamma]c.m. = 510+/-60 keV). The possible implications of these results for stellar helium burning calculations are discussed. |
| Persistent URL (URI): | http://hdl.handle.net/2027.42/22565
http://www.sciencedirect.com/science/article/B6TVB-471YWKD-P
C/2/06f470bcbd426205b87a4f32db71c217 |
| Other Identifiers: | 10.1016/0375-9474(78)90180-X |
| Appears in Collections: | Interdisciplinary and Peer-Reviewed
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| 0000110.pdf | | 964Kb | Adobe PDF | View/Open |
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