Measurement of the ^{13}C(α, n_{0})^{16}O Differential Cross Section from 0.8 to 6.5 MeV

The cross section of the ^{13}C(α,n)^{16}O 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 ≈15%. Using a state-of-the-art neutron detection array, we have perf...

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Published in:Physical review letters 2024-02, Vol.132 (6), p.062702
Main Authors: deBoer, R J, Febbraro, M, Bardayan, D W, Boomershine, C, Brandenburg, K, Brune, C, Coil, S, Couder, M, Derkin, J, Dede, S, Fang, R, Fritsch, A, Gula, A, Gyürky, Gy, Hackett, B, Hamad, G, Jones-Alberty, Y, Kelmar, R, Manukyan, K, Matney, M, McDonaugh, J, Meisel, Z, Moylan, S, Nattress, J, Odell, D, O'Malley, P, Paris, M W, Robertson, D, Shahina, Singh, N, Smith, K, Smith, M S, Stech, E, Tan, W, Wiescher, M
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Language:English
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Summary:The cross section of the ^{13}C(α,n)^{16}O 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 ≈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 ≈5% and resolving long standing discrepancies in higher energy data.
ISSN:1079-7114