MEASUREMENT OF THE REACTIONS 17O(α,γ)21Ne AND 17O(α, n)20Ne AND THEIR IMPACT ON THE WEAK s PROCESS

被引：0

作者：

Best, A. ^{[1
]}

Gorres, J. ^{[1
]}

Beard, M. ^{[1
]}

Couder, M. ^{[1
]}

Deboer, R. ^{[1
]}

Falahat, S. ^{[1
,2
]}

Kontos, A. ^{[1
]}

Kratz, K. -L. ^{[2
]}

Leblanc, P. J. ^{[1
]}

Li, Q. ^{[1
]}

O'Brien, S. ^{[1
]}

Talwar, R. ^{[1
]}

Tan, W. ^{[1
]}

Uberseder, E. ^{[1
]}

Wiescher, M. ^{[1
]}

Guray, R. T. ^{[3
]}

Ozkan, N. ^{[3
]}

Sonnabend, K. ^{[4
]}

机构：

[1] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[2] Johannes Gutenberg Univ Mainz, D-55122 Mainz, Germany

[3] Kocaeli Univ, Dept Phys, TR-41380 Kocaeli, Turkey

[4] Goethe Univ Frankfurt, Inst Appl Phys, D-60325 Frankfurt, Germany

来源：

CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS | 2013年

基金：

美国国家科学基金会;

关键词：

s process; neutron poison; R matrix; THERMONUCLEAR REACTION-RATES; PROCESS NUCLEOSYNTHESIS; MASSIVE STARS;

D O I：

暂无

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 ratio of the reaction rates of the competing channels O-17(alpha, gamma)Ne-21 and O-17(alpha, n)Ne-20 determines the efficiency of O-16 as a neutron poison in the weak s process. We present results of the first measurement of the reaction O-17(alpha, gamma)Ne-21 and an improved study of the reaction O-17(alpha, n)Ne-20, including an independent measurement of the O-17(alpha, n(1))Ne-20 channel and a simultaneous R-Matrix fit to both the n(o) and the n(1) channels. The impact of the new data on the weak s process is discussed.

引用

页码：320 / 325

页数：6

共 50 条

[21] ETUDE DES REACTIONS 20NE(D,P)21NE ET 20NE(D,ALPHA)18F A 2MEV
LAMBERT, M
DUMAZET, G
BEAUMEVIELLE, H
COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L ACADEMIE DES SCIENCES SERIE B, 1966, 263 (08): : 580 - +
[22] Precision measurement of the angular distribution for the 16O(d, p)17O transfer reaction to the ground state of 17O
Ma, T. L.
Guo, B.
Li, Z. H.
Li, Y. J.
Pang, D. Y.
Han, Y. L.
Shen, Y. P.
Su, J.
Liu, J. C.
Fan, Q. W.
Han, Z. Y.
Li, X. Y.
Lian, G.
Su, Y.
Wang, Y. B.
Yan, S. Q.
Zeng, S.
Liu, W. P.
NUCLEAR PHYSICS A, 2019, 986 : 26 - 33
[23] The importance and the sensitivity of the reaction 17O(n γ)18O in the s-process nucleosynthesis
Yamamoto, K.
Wada, T.
Ohta, M.
Nishimura, T.
Fujimoto, M. Y.
Kato, K.
Suda, T.
Aikawa, M.
TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI, 2007, 891 : 405 - +
[24] The Measurement of 16O(n,γ)17O Reaction at the Pygmy Resonance Region
Huang Zheng-de Zhu Li-hua Hou Long Ding Da-zhao (China Institute of Atomic Energy
ChineseJournalofNuclearPhysics, 1994, (03) : 270 - 274
[25] Global and local meteoric water lines for δ17O/δ18O and the spatiotemporal distribution of Δ′17O in Earth’s precipitation
Stefan Terzer-Wassmuth
Luis J. Araguás-Araguás
Leonard I. Wassenaar
Christine Stumpp
Scientific Reports, 13
[26] Global and local meteoric water lines for δ17O/δ18O and the spatiotemporal distribution of Δ′17O in Earth's precipitation
Terzer-Wassmuth, Stefan
Araguas-Araguas, Luis J.
Wassenaar, Leonard I.
Stumpp, Christine
SCIENTIFIC REPORTS, 2023, 13 (01)
[27] Study of 17O(p,α)14N reaction via the Trojan Horse Method for application to 17O nucleosynthesis
Sergi, M. L.
Spitaleri, C.
Coc, A.
Pizzone, R. G.
Gulino, M.
Burjan, V.
Cherubini, S.
Crucilla, V.
Hammache, F.
Hons, Z.
Kiss, G.
Kroha, V.
La Cognata, M.
Lamia, L.
Puglia, S. M. R.
Rapisarda, G. G.
Romano, S.
de Sereville, N.
Somorjai, E.
Tudisco, S.
Tumino, A.
ORIGIN OF MATTER AND EVOLUTION OF GALAXIES, 2008, 1016 : 433 - +
[28] Study of the 17O(p, α)14N reaction via the Trojan Horse Method for application to 17O nucleosynthesis
Sergi, M. L.
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-BASIC TOPICS IN PHYSICS, 2010, 125 (04): : 457 - 468
[29] Experimental determination of the 17O(p,α)14N and 17O(p,γ)18F reaction rates
Chafa, A.
Tatischeff, V.
Aguer, P.
Barhoumi, S.
Coc, A.
Garrido, F.
Hernanz, M.
Jose, J.
Kiener, J.
Lefebvre-Schuhl, A.
Ouichaoui, S.
de Sereville, N.
Thibaud, J. -P.
PHYSICAL REVIEW C, 2007, 75 (03):
[30] Hypernuclear magnetic moments and Λ-N interaction in Λ17O
Lu Hong-Feng
CHINESE PHYSICS LETTERS, 2007, 24 (09) : 2547 - 2550

← 1 2 3 4 5 →