High-resolution investigation of the reaction 35Cl(p, α0)32S

Bǒsnjaković, B.; Bouwmeester, Jessica; Best, J.A. Van; Pruys, H.

doi:10.1016/0375-9474(68)90680-5

Cited by 24 publications

(17 citation statements)

References 18 publications

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“…21 Iliadis et al [131] 31 P(p,α) 28 Si 1915.97±0. 18 Iliadis et al [131] 30 S(p,γ) 31 Cl 290±50 Iliadis et al [131], Wrede et al [257] 31 S(p,γ) 32 Cl 1574±7 Iliadis et al [130] 32 S(p,γ) 33 Cl 2276.7±0. 4 Iliadis et al [131] 31 Cl(p,γ) 32 Ar 2420±50 Herndl et al [119] 32 Cl(p,γ) 33 Ar 3343±7 Herndl et al [119], Schatz et al [211] 35 Cl(p,γ) 36 Ar 8506.97±0.05 Iliadis et al [131], Röpke et al [195] 35 Cl(p,α) 32 S 1866.21±0.…”

Section: S 2460±30mentioning

confidence: 99%

“…Although we adopt this value for the resonance energy, an independent measurement would be highly desirable in view of the possibility that the observed proton peak in Ref. [12] may arise from the β-delayed 2p-decay (instead of single proton emission) of 31 Ar. The proton and γ-ray partial widths of these two resonances, as well as the direct capture S-factor, are derived from shell model results [119].…”

Section: Mgmentioning

confidence: 99%

“…Comments: Because of the small Q-value (Tab. 1) only the first and second excited states in 31 Cl are expected to contribute to the resonant reaction rate. The second excited state has been observed at an excitation energy of E x = 1754±3 keV by Fynbo et al [97]; from their proton energy observed in the 31 Ar β-delayed decay spectrum (E p = 1416 ± 2 keV) we find a resonance energy of E cm r = 1463 ± 2 keV.…”

Section: Mgmentioning

confidence: 99%

“…Probability (arb. units) 31 Cl(p, γ) 32 Ar Comments: The total rate has contributions from the direct capture process and from 5 resonances located at E cm r = 21 − 1387 keV. The direct capture S-factor as well as the proton and γ-ray partial widths of the resonances are based on the shell-model [119,211].…”

Section: Mgmentioning

confidence: 99%

“…Finally, we attempted to calculate Monte Carlo rates for the 30 P(p,γ) 31 S reaction. However, the effort proved futile although several recent studies addressed the nuclear structure of important levels in the 31 S compound nucleus [137,159,256,258]. At present, the 31 S-31 P mirror state assignments are uncertain and most of the spectroscopic factors and γ-ray partial widths are unknown.…”

Section: Of Paper I)mentioning

confidence: 99%

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Charged-particle thermonuclear reaction rates: II. Tables and graphs of reaction rates and probability density functions

et al. 2010

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Numerical values of charged-particle thermonuclear reaction rates for nuclei in the A=14 to 40 region are tabulated. The results are obtained using a method, based on Monte Carlo techniques, that has been described in the preceding paper of this series (Paper I). We present a low rate, median rate and high rate which correspond to the 0.16, 0.50 and 0.84 quantiles, respectively, of the cumulative reaction rate distribution. The meaning of these quantities is in general different from the commonly reported, but statistically meaningless expressions, "lower limit", "nominal value" and "upper limit" of the total reaction rate. In addition, we approximate the Monte Carlo probability density function of the total reaction rate by a lognormal distribution and tabulate the lognormal parameters µ and σ at each temperature. We also provide a quantitative measure (Anderson-Darling test statistic) for the reliability of the lognormal approximation. The user can implement the approximate lognormal reaction rate probability density functions directly in a stellar model code for studies of stellar energy generation and nucleosynthesis. For each reaction, the Monte Carlo reaction rate probability density functions, together with their lognormal approximations, are displayed graphically for selected temperatures in order to provide a visual impression. Our new reaction rates are appropriate for bare nuclei in the laboratory. The nuclear physics input used to derive our reaction rates is presented in the subsequent paper of this series (Paper III). In the fourth paper of this series (Paper IV) we compare our new reaction rates to previous results.

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