Direct measurement of the astrophysical reaction 14O (α, p) 17F

被引：36
|
作者：
Notani, M
Kubono, S
Teranishi, T
Yanagisawa, Y
Michimasa, S
Ue, K
He, JJ
Iwasaki, H
Baba, H
Tamaki, M
Minemura, T
Shimoura, S
Hokoiwa, N
Wakabayashi, Y
Sasaki, T
Fukuchi, T
Odahara, A
Gono, Y
Fülöp, Z
Lee, EK
Hahn, KI
Moon, JY
Yun, CC
Lee, JH
Lee, CS
Kato, S
机构：
[1] Univ Tokyo, Ctr Nucl Study, CNS, RIKEN Branch, Wako, Saitama 3510198, Japan
[2] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
[3] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
[4] Rikkyo Univ, Dept Phys, Tokyo 1718501, Japan
[5] Kyushu Univ, Dept Phys, Fukuoka 8128581, Japan
[6] Nishinippon Inst Technol, Fukuoka 8000394, Japan
[7] ATOMKI, Nucl Res Inst, H-4001 Debrecen, Hungary
[8] Ewha Womans Univ, Dept Sci Educ, Seoul 120750, South Korea
[9] Chung Ang Univ, Dept Phys, Seoul 156756, South Korea
[10] Yamagata Univ, Dept Phys, Yamagata 9908560, Japan
来源：
NUCLEAR PHYSICS A | 2004年 / 746卷
关键词：
D O I：
10.1016/j.nuclphysa.2004.09.019
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
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 E-c.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 resonance at around 7.1 MeV in Ne-18.
引用
收藏
页码：113C / 117C
页数：5
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