Asymptotic normalization coefficients for 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi>Be</mml:mi><mml:mprescripts /><mml:none /><mml:mn>7</mml:mn></mml:mmultiscripts><mml:mspace width="0.16em" /><mml:mo>+</mml:mo><mml:mspace width="0.16em" /><mml:mi>p</mml:mi><mml:mo>→</mml:mo><mml:mmultiscripts><mml:mi mathvariant="normal">B</mml:mi><mml:mprescripts /><mml:none /><mml:mn>8</mml:mn></mml:mmultiscripts></mml:mrow></mml:math>
 from the peripheral 
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Tojiboev, O. R.; Yarmukhamedov, R.; Artemov, S. V.; Sakuta, S.B.

doi:10.1103/physrevc.94.054616

Cited by 14 publications

(6 citation statements)

References 64 publications

(143 reference statements)

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“…For the spin-orbit part, the depth was fixed to V so = 4.898 MeV whereas for the central part it was adjusted to give the exper- imental proton separation energy for the ground state of 8 B (S p = 0.136 MeV). The ground-state wave function obtained with this potential has an ANC value of C 2 = 0.53 fm −1 , which is within the range of values extracted from different reactions [35,[55][56][57][58][59] and microscopic calculations [60][61][62]. For continuum states, the same p + 7 Be potential was employed.…”

Section: Resultssupporting

confidence: 60%

Elastic scattering and breakup reactions of the proton drip-line nucleus B8 on Pb208 at 238 MeV

Wang¹,

Yang²,

Moro³

et al. 2021

Phys. Rev. C

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Elastic scattering and breakup angular distributions of the weakly bound radioactive nucleus 8 B on a 208 Pb target at an incident energy of 238 MeV, which corresponds to four times the Coulomb barrier, have been measured at the HIRFL-RIBLL facility (Institute of Modern Physics, Lanzhou). The data have been analyzed using the optical model and the continuum discretized coupled channels (CDCC) formalism. The measured and calculated elastic scattering angular distributions do not show any significant Coulomb rainbow suppression. The angular distribution for the breakup reaction was measured for the first time at this energy. The angular distribution of the 7 Be fragments could be reproduced considering elastic plus nonelastic breakup contributions, with the former evaluated with the CDCC calculations and the latter with the model of Ichimura, Austern, and Vincent [Phys. Rev. C 32, 431 (1985)]. The comparison of the breakup cross section of 8 B with that of 11 Be suggests that the Coulomb and centrifugal barriers encountered by the valence proton may suppress the breakup cross section.

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Section: Resultssupporting

confidence: 60%

Elastic scattering and breakup reactions of the proton drip-line nucleus B8 on Pb208 at 238 MeV

Wang¹,

Yang²,

Moro³

et al. 2021

Phys. Rev. C

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“…Perhaps, that is one of the possible reasons why the ANC value for 7 Be + p → 8 B recommended in [27,28] is underestimated as a comparison with that of Refs. [29,30], which leads in turn to the underestimated astrophysical S factor for the direct radiative capture 7 Be(p, γ) 8 B reaction at solar energies (see [29,30]). Therefore, in the "dramatic" case, the next terms…”

Section: Dispersion Approach and Dwbamentioning

confidence: 99%

“…), and for the A(d, n)B reaction considered in Ref. [30], where ∆V C f =0 and F C = 1 (η x =0 and η B =0). Besides, as shown in [13], the "dramatic" case does not arise for peripheral charged-particle transfer reactions as the values of the vertex Coulomb F C factor, calculated at η x =0 and η B =0, close to 1.…”

Section: Dispersion Approach and Dwbamentioning

confidence: 99%

Dispersion (asymptotic) theory of charged particle transfer reactions at low energies and nuclear astrophysics: I. the "non-dramatic" case

Yarmukhamedov,

Tursunmakhatov

2020

Preprint

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A new dispersion (asymptotic) theory is proposed for the peripheral sub-and abovebarrier charged particle transfer A(x, y)B reaction in the three-body (A, a and y) model where x = y + a and B = A + a, and a is a transferred particle. It is based on the combination of the dispersion theory and the conventional DWBA method. The explicit forms have been derived for the exact three-body pole amplitude and differential cross section in which the contribution of the three-body (A, a and y) Coulomb dynamics of the transfer mechanism in the peripheral partial amplitudes, corresponding to partial waves with l i >> 1, is taken into account correctly. For the specific peripheral proton and triton transfer reactions, the comparative analysis of the peripheral partial amplitudes at l i >> 1 , which correspond to the one-step pole and exact three-body pole amplitudes as well as those of the "post"-approximation and the post form of the conventional DWBA, is performed with each other. It shows the absolute inapplicability of the "post"-approximation usually applied for getting an information about specific asymptotic normalization coefficients being astrophysical interest.

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“…[34], the astrophysical S factor at low energies is mainly determined by the ANC. The idea is widely used for estimating the astrophysical S factor of capture reactions [31,32,35].…”

Section: Introductionmentioning

confidence: 99%

Astrophysical S factor and rate of $^{7}{\rm Be}(p, γ)^{8}{\rm B}$ direct capture reaction in a potential model

Tursunov,

Turakulov,

Kadyrov

et al. 2021

Preprint

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The astrophysical 7 Be(p, γ) 8 B direct capture process is studied in the framework of a two-body single-channel model with potentials of the Gaussian form. A modified potential is constructed to reproduce the new experimental value of the S-wave scattering length and the known astrophysical S factor at the Gamow energy, extracted from the solar neutrino flux. The resulting potential is consistent with the theory developed by Baye [Phys. Rev. C 62 (2000) 065803] according to which the S-wave scattering length and the astrophysical S factor at zero energy divided by the square of ANC are related. The obtained results for the astrophysical S factor at intermediate energies are in good agreement with the two data sets of Hammache et al. [Phys. Rev. Lett. 86, 3985 (2001); ibid. 80, 928 (1998)]. Linear extrapolation to zero energy yields S 17 (0) ≈ (20.5 ± 0.5) eV b, consistent with the Solar Fusion II estimate. The calculated reaction rates are substantially lower than the results of the NACRE II collaboration.

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Asymptotic normalization coefficients for Be7+p→B8 from the peripheral

Cited by 14 publications

References 64 publications

Elastic scattering and breakup reactions of the proton drip-line nucleus B8 on Pb208 at 238 MeV

Elastic scattering and breakup reactions of the proton drip-line nucleus B8 on Pb208 at 238 MeV

Dispersion (asymptotic) theory of charged particle transfer reactions at low energies and nuclear astrophysics: I. the "non-dramatic" case

Astrophysical S factor and rate of $^{7}{\rm Be}(p, γ)^{8}{\rm B}$ direct capture reaction in a potential model

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