Measurement of the 13C(α, n0)16O Differential Cross Section from 0.8 to 6.5 MeV

被引:2
作者
deBoer, R. J. [1 ]
Febbraro, M. [2 ]
Bardayan, D. W. [1 ]
Boomershine, C. [1 ]
Brandenburg, K. [3 ]
Brune, C. [3 ]
Coil, S. [1 ]
Couder, M. [1 ]
Derkin, J. [3 ]
Dede, S. [1 ]
Fang, R. [1 ]
Fritsch, A. [4 ]
Gula, A. [1 ]
Gyurky, Gy. [5 ]
Hackett, B. [6 ]
Hamad, G. [3 ]
Jones-Alberty, Y. [3 ]
Kelmar, R. [1 ]
Manukyan, K. [1 ]
Matney, M. [1 ]
McDonaugh, J. [1 ]
Meisel, Z. [3 ]
Moylan, S. [1 ]
Nattress, J. [2 ]
Odell, D. [3 ]
O'Malley, P. [1 ]
Paris, M. W. [7 ]
Robertson, D. [1 ]
Shahina [1 ]
Singh, N. [3 ]
Smith, K. [8 ]
Smith, M. S. [2 ]
Stech, E. [1 ]
Tan, W. [1 ]
Wiescher, M. [1 ]
机构
[1] Univ Notre Dame, Dept Phys & Astron, Notre Dame, IN 46556 USA
[2] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
[3] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA
[4] Gonzaga Univ, Dept Phys, Spokane, WA 99258 USA
[5] Inst Nucl Res Atomki, POB 51, H-4001 Debrecen, Hungary
[6] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
[7] Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA
[8] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
基金
美国国家科学基金会;
关键词
S-PROCESS; PROCESS NUCLEOSYNTHESIS; ANGULAR-DISTRIBUTIONS; ENERGIES; OXYGEN; NEUTRONS; O-17; IRON;
D O I
10.1103/PhysRevLett.132.062702
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The cross section of the 13C(alpha, n)16O reaction is needed for nuclear astrophysics and applications to a precision of 10% or better, yet inconsistencies among 50 years of experimental studies currently lead to an uncertainty of approximate to 15%. Using a state-of-the-art neutron detection array, we have performed a high resolution differential cross section study covering a broad energy range. These measurements result in a dramatic improvement in the extrapolation of the cross section to stellar energies potentially reducing the uncertainty to approximate to 5% and resolving long standing discrepancies in higher energy data.
引用
收藏
页数:7
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