A remeasurement of the excitation function in the vicinity of the 12.44 and 13.1 MeV levels of 16O

R-matrix analysis of16O compound nucleus reactions

“…[25] and [22] showed good agreement in the shape of the excitation curves but since no absolute cross section scale was reported, these excitation curves and angular distributions are scaled to match the calculation greatly decreasing their constraint on the over all fit. The normalization [25,28]), and 135 • (Ref. [25]) (labeled a) through d) respectively).…”

“…Several experimental examinations have been made of the 12 C(α, γ 0 ) 16 O cross section near the two 1 − levels just above S p which are included in the present analysis [22,25,26,28]. The θ lab = 90 • differential yield data from Ref.…”

“…The θ lab = 90 • differential yield data from Ref. [28] could be read directly from Table 5 of that work. The other excitation curves had to be digitized from the The (α, α1) yields were divided by the corresponding (a, a0) yields.…”

AstrophysicalSfactor of theC12(α,γ)O16An1, Chen2, Ma3 et al. 2015Phys. Rev. C23080View full textAdd to dashboardCite

“…In higher energy region, there are five independent experiments [19][20][21][22]67] covering the 1 ments of the relative ratio of peak cross sections σ(1…”

“…To investigate the specific role of the 16 O nucleus for the S factor, a wealth of experimental data have been accumulated over the past few decades, including the precise measurements of total cross-section of 12 C(α, γ) 16 O [7][8][9][10], γ-ray angular distributions of ground state transition [11][12][13][14][15][16][17][18][19][20][21][22], cascade transitions [8,12,23,24], β-delayed α spectra for 16 N [25][26][27][28], transfer reaction [29][30][31], elastic scattering 12 C(α, α) 12 C [32][33][34][35][36] and additional particle reaction 16±16 Kunz [15] 165±50 76±20 85±30 4±4 Brune [29] 159 101±17 42…”