Three-body optical potentials in 
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 reactions and their influence on indirect study of stellar nucleosynthesis

Dinmore, M. J.; Timofeyuk, N. K.; Al-Khalili, Jim

doi:10.1103/physrevc.104.034614

Cited by 2 publications

(1 citation statement)

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“…Additionally, the formal projection of the many-body problem onto the three-particle space gives rise to an irreducible three-body force (3BF) which cannot be decomposed into a sum of pairwise interactions [345] and thus cannot be constrained using nucleon-nucleus scattering data. Efforts to quantify the effects of the irreducible nucleon-nucleon-nucleus forces have been carried out in [346,347] by utilizing multiple scattering theory to estimate the lowest order contributions to the 3BF arising from the excitation of nucleons inside the nucleus A. While those works demonstrated that the 3BF corrections to the pairwise potentials had a significant impact on deuteron-induced reaction observables, there is some ambiguity coming from how the phenomenological potentials are defined that does not allow for the disentanglement of irreducible three-body contributions.…”

Section: Model Uncertainties Beyond Pairwise Effective Potentialsmentioning

confidence: 99%

Optical potentials for the rare-isotope beam era

Hebborn

Nunes

Potel

et al. 2023

J. Phys. G: Nucl. Part. Phys.

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We review recent progress and motivate the need for further developments in nuclear optical potentials that are widely used in the theoretical analysis of nucleon elastic scattering and reaction cross sections. In regions of the nuclear chart away from stability, which represent a frontier in nuclear science over the coming decade and which will be probed at new rare-isotope beam facilities worldwide, there is a targeted need to quantify and reduce theoretical reaction model uncertainties, especially with respect to nuclear optical potentials. We first describe the primary physics motivations for an improved description of nuclear reactions involving short-lived isotopes, focusing on its benefits for fundamental science discoveries and applications to medicine, energy, and security. We then outline the various methods in use today to build optical potentials starting from phenomenological, microscopic, and ab initio methods, highlighting in particular the strengths and weaknesses of each approach. We then discuss publicly-available tools and resources facilitating the propagation of recent progresses in the field to practitioners. Finally, we provide a set of open challenges and recommendations for the field to advance the fundamental science goals of nuclear reaction studies in the rare-isotope beam era.

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Section: Model Uncertainties Beyond Pairwise Effective Potentialsmentioning

confidence: 99%