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Direct measurement of the astrophysical reaction O-14(alpha,p)F-17
- Authors
- Notani, M.; Kubono, S.; Teranishi, T.; Yanagisawa, Y.; Michimasa, S.; Ue, K.; He, J.J.; Iwasaki, H.; Baba, H.; Tamaki, M.; Minemura, T.; Shimoura, S.; Hokoiwa, N.; Wakabayashi, Y.; Sasaki, T.; Fukuchi, T.; Odahara, A.; Gono, Y.; Fulop, Z.; Lee, E.K.; Hahn, K.I.; Moon, J.Y.; Yun, C.C.; Lee, J.H.; Lee, Chun Sik; Kato, S.
- Issue Date
- Jun-2004
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- NUCLEAR PHYSICS A, v.738, no.1-4 SUPPL., pp 411 - 415
- Pages
- 5
- Journal Title
- NUCLEAR PHYSICS A
- Volume
- 738
- Number
- 1-4 SUPPL.
- Start Page
- 411
- End Page
- 415
- ISSN
- 0375-9474
1873-1554
- Abstract
- The stellar reaction O-14(alpha,p)F-17, that critically determines the onset of the high-temperature rp-process, has been studied through a direct measurement with a low-energy radioactive O-14 beam and a gaseous helium target cooled down to 30 K. The reaction cross section was measured directly by means of a thick target technique in the energy range of Ec.m.(O-14+alpha) = 0.8-3.8 MeV. The O-14(alpha,p)F-17* reaction leading to the first excited state in F-17 was clearly observed for the first time, suggesting an increase of about 50% for the stellar reaction rate through resonances at around 7.1 MeV in Ne-18.
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