Yang, Z. H. and Kubota, Y. and Corsi, A. and Yoshida, K. and Sun, X. X. and Korkulu, Zeren and Stuhl, László (2021) Quasifree Neutron Knockout Reaction Reveals a Small s-Orbital Component in the Borromean Nucleus B-17. PHYSICAL REVIEW LETTERS, 126 (8). ISSN 0031-9007
|
Text
2102.03699.pdf Download (2MB) | Preview |
Abstract
A kinematically complete quasifree (p, pn) experiment in inverse kinematics was performed to study the structure of the Borromean nucleus B-17, which had long been considered to have a neutron halo. By analyzing the momentum distributions and exclusive cross sections, we obtained the spectroscopic factors for 1s(1/2) and 0d(5/2) orbitals, and a surprisingly small 1s(1/2) percentage of 9(2)% was determined for 1s(1/2). Our finding of such a small component and the halo features reported in prior experiments can be explained by the deformed relativistic Hartree-Bogoliubov theory in continuum, revealing a definite but not dominant neutron halo in B-17. The present work gives the smallest s- or p-orbital component among known nuclei exhibiting halo features and implies that the dominant occupation of s or p orbitals is not a prerequisite for the occurrence of a neutron halo.
Item Type: | Article |
---|---|
Subjects: | Q Science / természettudomány > QC Physics / fizika |
SWORD Depositor: | MTMT SWORD |
Depositing User: | MTMT SWORD |
Date Deposited: | 16 Jan 2023 14:42 |
Last Modified: | 16 Jan 2023 14:42 |
URI: | http://real.mtak.hu/id/eprint/156617 |
Actions (login required)
![]() |
Edit Item |