The 14N(p,γ)15O low-energy S-factor

被引：108
|
作者：
Angulo, C
Descouvemont, P
机构：
[1] Univ Catholique Louvain, Ctr Rech Cyclotron, B-1348 Louvain, Belgium
[2] Free Univ Brussels, B-1050 Brussels, Belgium
来源：
NUCLEAR PHYSICS A | 2001年 / 690卷 / 04期
关键词：
N-14(p; gamma)O-15 cross section; R-matrix; reaction rate;
D O I：
10.1016/S0375-9474(00)00696-5
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 N-14(p,gamma)O-15 low-energy S-factor is analyzed using the R-matrix model. We find that the g.s. contribution is less than previously reported. The S-factor is mainly given by the 6.79 MeV state contribution which is determined by its asymptotic normalization constant (ANC). Consequently, the S-factor at zero energy is lower by a factor of 1.7 compared to the values given in recent compilations. This result may affect the nucleosynthesis and time scale evolution in massive stars. New measurements of the N-14(p,gamma)O-15 cross section over a wide energy range, and especially at low energies, are highly desirable. Significant improvement could be also obtained from the ANC measurement of the 6.79 MeV state. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：755 / 768
页数：14
相关论文
共 50 条
  • [31] Study of 14N(p,γ)15O resonance reaction at Eplab=278 keV
    Sharma, Sathi
    Gupta, A.
    Das, S.
    Chowdhury, M. Roy
    Mandal, A.
    Bisoi, A.
    Nanal, V.
    Tribedi, L. C.
    Sarkar, S.
    Sarkar, M. Saha
    10TH EUROPEAN SUMMER SCHOOL ON EXPERIMENTAL NUCLEAR ASTROPHYSICS, 2019, 2020, 227
  • [32] The 14N(p, γ)15O reaction, solar neutrinos and the age of the globular clusters
    Degl'Innocenti, S
    Fiorentini, G
    Ricci, B
    Villante, FL
    PHYSICS LETTERS B, 2004, 590 (1-2) : 13 - 20
  • [33] Investigation of the 14N(p, γ)15O reaction and its impact on the CNO cycle
    Frentz, B.
    Aprahamian, A.
    Boeltzig, A.
    Borgwardt, T.
    Clark, A. M.
    deBoer, R. J.
    Gilardy, G.
    Goerres, J.
    Hanhardt, M.
    Henderson, S. L.
    Howard, K. B.
    Kadlecek, T.
    Liu, Q.
    Macon, K. T.
    Moylan, S.
    Reingold, C. S.
    Robertson, D.
    Seymour, C.
    Strauss, S. Y.
    Strieder, F.
    Vande Kolk, B.
    Wiescher, M.
    PHYSICAL REVIEW C, 2022, 106 (64)
  • [34] Extrapolation of astrophysical S factors for the reaction 14N((p, γ) 15O to near-zero energies
    S. V. Artemov
    S. B. Igamov
    Q. I. Tursunmakhatov
    R. Yarmukhamedov
    Physics of Atomic Nuclei, 2012, 75 : 291 - 309
  • [35] S-factor of 14N(α,γ)18F reaction at low-energies
    Khalili, H.
    RESULTS IN PHYSICS, 2018, 9 : 1116 - 1119
  • [36] Extrapolation of Astrophysical S Factors for the Reaction 14N(p,γ)15O to Near-Zero Energies
    Artemov, S. V.
    Igamov, S. B.
    Tursunmakhatov, Q. I.
    Yarmukhamedov, R.
    PHYSICS OF ATOMIC NUCLEI, 2012, 75 (03) : 291 - 309
  • [37] Does the Excited Cluster 14N* Exist in the 15O Nucleus?
    S. B. Dubovichenko
    N. A. Burkova
    Russian Physics Journal, 2019, 61 : 2105 - 2112
  • [38] LEVEL STRUCTURE IN 15O FROM PROTON BOMBARDMENT OF 14N
    WEST, ML
    JONES, CM
    BAIR, JK
    WILLARD, HB
    PHYSICAL REVIEW, 1969, 179 (04): : 1047 - &
  • [39] First measurement of the 14N(p, γ)15O cross section down to 70 keV
    Lemut, A
    Bemmerer, D
    Confortola, F
    Bonetti, R
    Broggini, C
    Corvisiero, P
    Costantini, H
    Cruz, J
    Formicola, A
    Fülöp, Z
    Gervino, G
    Guglielmetti, A
    Gustavino, C
    Gyürky, G
    Imbriani, G
    Jesus, AP
    Junker, M
    Limata, B
    Menegazzo, R
    Prati, P
    Roca, V
    Rogalla, D
    Rolfs, C
    Romano, M
    Alvarez, CR
    Schümann, F
    Somorjai, E
    Straniero, O
    Strieder, F
    Terrasi, F
    Trautvetter, HP
    PHYSICS LETTERS B, 2006, 634 (5-6) : 483 - 487
  • [40] Activation cross section measurement of the 14N(p, γ)15O astrophysical key reaction
    Gyurky, Gy
    Halasz, Z.
    Kiss, G. G.
    Szucs, T.
    Fulop, Zs
    PHYSICAL REVIEW C, 2022, 105 (02)
12345