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

页码：113C / 117C

页数：5

共 13 条

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