Tests of transfer reaction determinations of astrophysical<b><i>S</i></b>factors

Gagliardi, C. A.; Tribble, R. E.; Azhari, A.; Clark, H. L.; Lui, Y.‐W.; Mukhamedzhanov, A. M.; Sattarov, A.; Trache, L.; Burjan, V.; Cejpek, J.; Kroha, V.; Piskoř, Š.; Vincour, J.

doi:10.1103/physrevc.59.1149

Cited by 108 publications

(101 citation statements)

References 24 publications

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“…These measurements have prompted interest in the determination of reliable opticalmodel potentials for 17 F. The proton radiative capture reaction 16 O(p, γ ) 17 F has been measured at stellar energies by Morlock et al [10]. The extracted astrophysical S factors are in excellent agreement with those obtained with the asymptotic normalization coefficient (ANC) method by use of the transfer reaction 16 O( 3 He,d) 17 F by Gagliardi et al [11], and the halo properties of the first excited state (J π = 1/2 + , E x = 495 keV) were well established. Quasi-elastic scattering on a heavy target has been measured by Liang et al [12,13] and by Romoli et al [14] at near-barrier energies.…”

Section: Introductionsupporting

confidence: 72%

“…Here we used for 17 F and 14 N densities calculated as ρ = ρ core + ρ sp , where ρ core is the HF+BCS density for the well-bound core nucleus and ρ sp is the single-particle density calculated from the wave function of the last proton that has the asymptotic behavior given by the ANCs extracted from experiment. For the ground state in 17 F we used C 2 1d 5/2 = 1.08(10) fm −1 , as obtained from the reaction 16 O( 3 He,d) 17 F [11]. With this value the corresponding single-particle rms radius is 4.45±0.42 fm [24], about two times larger than the core radius.…”

Section: Optical Potentialsmentioning

confidence: 99%

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Elastic scattering of the proton drip-line nucleusF17

et al. 2005

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Precision data have been obtained for the elastic scattering of 17 F on 12 C and 14 N at 10 MeV/nucleon to clarify the reaction mechanism for loosely bound nuclei at low energies and to assess the validity of a double-folding procedure to predict optical model potentials for use in indirect methods for nuclear astrophysics. The double-folding procedure incorporates density and energy-dependent effective nucleon-nucleon interactions with realistic densities consistent with experimentally determined asymptotic normalization coefficients. The derived potentials provide an excellent description of the data and point to a complete dominance of absorption at the barrier. A semiclassical analysis in terms of multireflection barrier-internal barrier series expansion of the scattering amplitude shows that only the barrier component survives in the scattering process, pointing to the peripheral character of the reactions.

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Section: Introductionsupporting

confidence: 72%

Section: Optical Potentialsmentioning

confidence: 99%

Elastic scattering of the proton drip-line nucleusF17

et al. 2005

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“…The calculated S-factor at 30 keV rise up to 0.44 keVb, therefore its values at the range 30 -330 keV can be represented as 0.425(16) keVb. As seen from Table 1, this value is in a good agreement with results of works [45,46]. The linear extrapolation of data [45] in the form…”

Section: The Astrophysical S-factorsupporting

confidence: 79%

Radiative p 16O Capture at Astrophyiscal Energies

Dubovichenko

2016

Russ Phys J

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:The possibility of description of the experimental data for the astrophysical S-factor of the proton radiative capture on 16 O to the ground and first excited states of 17 F was considered in the frame of the modified potential cluster model with forbidden states and classification of the states according to Young tableaux. It was shown that on the basis of the E1 transitions from the P states of p 16 O scattering to the bound states of 17 F in the p 16 O channel, it generally succeed to explain the value of measured astrophysical S-factors and reaction rates at astrophysical energies.

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“…[9,10]. These constants can be used to determine the overall normalization of the S-factor for astrophysical nuclear reaction rates [11].…”

Section: Introductionmentioning

confidence: 99%

Precision calculation of the quartet-channelp−dscattering length

König

Hammer

2014

Phys. Rev. C

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We present a fully perturbative calculation of the quartet-channel proton-deuteron scattering length up to next-to-next-to-leading order in pionless effective field theory. We use a framework that consistently extracts the Coulomb-modified effective range function for a screened Coulomb potential in momentum space and allows for a clear linear extrapolation back to the physical limit without screening. Our result of 4 a p-d = (10.9 ± 0.4) fm agrees with older experimental determinations of this quantity but deviates from potential-model calculations and a more recent result from Black et al., which find larger values around 14 fm. As a possible resolution to this discrepancy, we discuss the scheme dependence of Coulomb subtractions in a three-body system.

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Tests of transfer reaction determinations of astrophysicalSfactors

Cited by 108 publications

References 24 publications

Elastic scattering of the proton drip-line nucleusF17

Elastic scattering of the proton drip-line nucleusF17

Radiative p 16O Capture at Astrophyiscal Energies

Precision calculation of the quartet-channelp−dscattering length

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