English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

We propose a new approach to probe the spatial extension of the valenceneutron orbital in the $^{9}$Be nucleus via the ${}^{9}$Be($p,pn$)${}^{8}$Beknockout reaction. This property of the nuclear molecular orbital has not beenestablished in previous experimental studies and divergence exists between thetheoretical descriptions of ${}^{9}$Be from different perspectives,\textit{i.e.}, the antisymmetrized molecular dynamics and the containerpictures of cluster dynamics. These pictures are represented by two differentwell-proven microscopic models, the antisymmetrized molecular dynamics (AMD)and Tohsaki-Horiuchi-Schuck-R\"{o}pke (THSR) wave functions. The correspondingreduced width amplitudes (RWAs) in the $^{8}$Be$+n$ channel are extracted fromboth the AMD and THSR wave functions, and they are found to describedrastically different valence-nucleon motion, which shows the theoreticalambiguity in describing the $\pi$-orbitals in $^{9}$Be. Using the RWAs asinput, the physical observables of the ${}^{9}$Be($p,pn$)${}^{8}$Be knockoutreaction are predicted by the distorted-wave impulse approximation (DWIA)framework. The magnitudes of the triple-differential cross sections (TDX) arefound to be highly sensitive to the RWA input. It is concluded that the${}^{9}$Be($p,pn$)${}^{8}$Be knockout reaction could provide a feasible probingfor the subtle differences between several structure models manifesting throughthe spatial extension of the $\pi$-orbital in the $^{9}$Be nucleus.

physics letters b

Manifestation of the divergence between  antisymmetrized-molecular-dynamics and container pictures of $^{9}$Be via  ${}^{9}$Be($p,pn$)${}^{8}$Be knockout reaction