The controversy 3/2+ state in 7Be and its effect on the 3He(α,γ)7Be reaction

Li, Y. J.; Li, Zhihong; Wang, Y.B.; Shen, Y. P.

doi:10.1016/j.nuclphysa.2022.122444

Cited by 3 publications

(3 citation statements)

References 31 publications

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“…Numerous theoretical models have been used to study ( ) He Be , 3 7 a g reaction such as the asymptotic normalization coefficient (ANC) technique [28,29], R-matrix theory [30,31], resonating group method [32] and potential models [33]. In this study, the theoretical analysis of the S-factor and total cross-sections of the ( ) He Be , 3 7 a g system at astrophysical energies has been performed based on the DWBA model.…”

Section: Resultsmentioning

confidence: 99%

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Estimation of the S₃₄(0) S-factor for ³He(α, γ)⁷Be reaction by using distorted wave born approximation and artificial neural network

Kocak,

Pasayigit,

Akkoyun

2023

Phys. Scr.

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The astrophysical S-factor and total cross-section of $^3He(\alpha,\gamma)^7Be$ radiative capture reactionare analyzed by using the first-order distorted wave born approximation and artificial neural network.To make estimations of S$_{34}$(0) at energies going to zero, we have used%distorted wave born approximation and we have compared our analysis withartificial neural network model as a new approximation in this area.First, we obtain distorted wave born approximation results by using the Gaussian and Woods-Saxon potentials.After, we evaluate artificial neural network approximation to analysis reaction obervables of $^3He(\alpha,\gamma)^7Be$ system. Our results show that artificial neural network model is a powerful candidate as an extrapolation model at astrophysical energies to estimation of S-factor observable.

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Section: Resultsmentioning

confidence: 99%

“…Therefore, it is quite difficult to explain all energies between E cm = 0 and 3 MeV with same parameter set by using potential models. Recently, Li et al [31] obtained satisfactory results by using R-Matrix formalism. But this formalism needs very complex data sets to explain the S-factor in all energy ranges.…”

Section: Resultsmentioning

confidence: 99%

Estimation of the S₃₄(0) S-factor for ³He(α, γ)⁷Be reaction by using distorted wave born approximation and artificial neural network

Kocak,

Pasayigit,

Akkoyun

2023

Phys. Scr.

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“…The existence of a controversial 3/2 + state close to the 6 Li+p threshold was discussed in Ref. [364] by a re-analysis of the existing data; it was estimated also its possible impact on the 3 He( 4 He,γ ) 7 Be reaction rate. Still on the astrophysical side, an extrapolation of S-factor for the 3 He( 4 He,γ ) 7 Be reaction down to the solar energy region has also been recently determined with the next-to-leading-order (NLO) amplitude in an effective field theory (EFT) [365]; recent EFT calculations were reported also for the 3 He+ 4 He elastic scattering data [366].…”

Section: Clustering In 7 Bementioning

confidence: 99%

Clusters in light nuclei: history and recent developments

Lombardo,

Dell’Aquila

2023

Riv. Nuovo Cim.

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In this review, we discuss recent advancements in the study of clustering phenomena occurring in light nuclei, and their influence on nuclear structure, dynamics, and astrophysics. In the introduction, we outline the historical steps leading to the concept of $$\alpha $$ α -clusterization in nuclei and provide a comprehensive description of the evolution of nuclear models capable to describe clustering aspects in nuclear systems and of the main experiments and discoveries leading to the development of this research field. We also describe some spectroscopic techniques that are used to establish the clustered nature of a given nuclear state. Some relevant experimental and theoretical findings recently reported both in experimental and theoretical works are discussed in the text. We put emphasis on recent achievements and remaining problems in the description of the structure of light isotopes, from helium to neon, including both self- and non-self-conjugate nuclei. Particular attention to the implication in the nuclear astrophysics context and to clustering effects in the dynamics of nuclear reactions is pursued all along the review.

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Multichannel constraints on the Li6(p,γ)7Be reaction

Prajapati,

deBoer

2024

Phys. Rev. C

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The controversy 3/2+ state in 7Be and its effect on the 3He(α,γ)7Be reaction

Cited by 3 publications

References 31 publications

Estimation of the S₃₄(0) S-factor for ³He(α, γ)⁷Be reaction by using distorted wave born approximation and artificial neural network

Estimation of the S₃₄(0) S-factor for ³He(α, γ)⁷Be reaction by using distorted wave born approximation and artificial neural network

Clusters in light nuclei: history and recent developments

Multichannel constraints on the Li6(p,γ)7Be reaction

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The controversy 3/2+ state in 7Be and its effect on the 3He(α,γ)7Be reaction

Cited by 3 publications

References 31 publications

Estimation of the S34(0) S-factor for 3He(α, γ)7Be reaction by using distorted wave born approximation and artificial neural network

Estimation of the S34(0) S-factor for 3He(α, γ)7Be reaction by using distorted wave born approximation and artificial neural network

Clusters in light nuclei: history and recent developments

Multichannel constraints on the Li6(p,γ)7Be reaction

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Product

Resources

About

Estimation of the S₃₄(0) S-factor for ³He(α, γ)⁷Be reaction by using distorted wave born approximation and artificial neural network

Estimation of the S₃₄(0) S-factor for ³He(α, γ)⁷Be reaction by using distorted wave born approximation and artificial neural network