Proton capture by 15N at stellar energies

Rolfs, C.; Rodney, W.S.

doi:10.1016/0375-9474(74)90205-x

Cited by 119 publications

(169 citation statements)

References 25 publications

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“…[40] provide considerable improvement over the 15 N(p, α 1 ) 12 C data of Ref. [6] and cover a similar energy range. This data set provides constraints on Γ α1 for several levels including the E x = 12.45 and 13.09 MeV levels that dominate the 15 N(p, γ 0 ) 16 O reaction.…”

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confidence: 60%

“…The cross section data of Ref. [6] are truncated below E p = 0.37 MeV where the energy dependence clearly deviates from the other measurements. 16 O data of Ref.…”

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confidence: 90%

“…Several previous analyses have reported a broad range of values for the zero energy Sfactor S(0) [5][6][7][8][9]. The large uncertainty in S(0) results from three competing contributions to the cross section.…”

Section: Introductionmentioning

confidence: 99%

“…[10] (original data available at Notre Dame), [5] (digitized from Fig. 4), [6] (digitized from Fig. 2), and [26] (digitized from Fig.…”

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confidence: 99%

“…16 O cross section data of Refs. [10], [5], [6], and [26] labeled a) through d) respectively. Laboratory proton energy is given on the top horizontal axis, excitation energy on the bottom horizontal axis of each plot.…”

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confidence: 99%

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R-matrix analysis of16O compound nucleus reactions

et al. 2013

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Background Over the last 60 years, a large amount of experimental nuclear data has been obtained for reactions which probe the 16 O compound nucleus near the alpha and proton separation energies, the energy regimes most important for nuclear astrophysics. Difficulties and inconsistencies in R-matrix fits of the individual reactions prompt a more complete analysis.Purpose Determine the level of consistency between the wide variety of experimental data using a multiple entrance/exit channel R-matrix framework. Using a consistent set of data from multiple reaction channels, attain an improved fitting for the 15 N(p, γ0) 16 O reaction data.Methods Reaction data for all available reaction channels were fit simultaneous using a multichannel R-matrix code.Results Over the wide range of experimental data considered, a high level of consistency was found, resulting in a single consistent R-matrix fit which described the broad level structure of 16 O below Ex = 13.5 MeV. The resulting fit was used to extract an improved determination of the low energy S-factor for the reactions 15 N(p, γ) 16 O and 15 N(p, α) 12 C. ConclusionThe feasibility and advantages of a complete multiple entrance/exit channel R-matrix description for the broad level structure of 16 O has been achieved. A future publication will investigate the possible effects of the multiple channel analysis on the reaction 12 C(α, γ) 16 O.

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confidence: 60%

“…The cross section data of Ref. [6] are truncated below E p = 0.37 MeV where the energy dependence clearly deviates from the other measurements. 16 O data of Ref.…”

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confidence: 90%