Ab initio informed 20Ne(p, pα)16O reaction elucidates the emergence of alpha clustering from chiral potentials

Authors

G. H. Sargsyan, Michigan State University
Kazuki Yoshida, Japan Atomic Energy Agency
Kazuyuki Ogata, Kyushu University
K. D. Launey, Louisiana State University
J. E. Escher, Lawrence Livermore National Laboratory
D. Langr, Czech Technical University in Prague
T. Dytrych, Louisiana State University

Document Type

Article

Publication Date

7-1-2025

Abstract

We report on the first ab initio informed α knock-out reaction in the intermediate-mass region, with the aim to probe the underlying chiral potential and its impact on the emergence of alpha clustering in this mass region. The theoretical predictions of the α+¹⁶O clustering in the ²⁰Ne ground state, based on the ab initio symmetry-adapted no-core shell model with continuum, yield a triple differential cross section for ²⁰Ne(p, pα)¹⁶O that is in a remarkable agreement with the data. This allows us to examine predictions of surface and in-medium α-cluster features that emerge from the underlying realistic nucleon-nucleon interaction with no parameters fitted to nuclear data beyond the two-body system, and to compare these to the successful antisymmetrized molecular dynamics approach.

Publication Source (Journal or Book title)

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

Recommended Citation

Sargsyan, G., Yoshida, K., Ogata, K., Launey, K., Escher, J., Langr, D., & Dytrych, T. (2025). Ab initio informed 20Ne(p, pα)16O reaction elucidates the emergence of alpha clustering from chiral potentials. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 866 https://doi.org/10.1016/j.physletb.2025.139563