Shallow and diffuse spin-orbit potential for proton elastic scattering from neutron-rich helium isotopes at 71 MeV/nucleon
Nuclear Experiment
2015-06-15 v1 Nuclear Theory
Abstract
Vector analyzing powers for proton elastic scattering from 8He at 71 MeV/nucleon have been measured using a solid polarized proton target operated in a low magnetic field of 0.1 T. The spin-orbit potential obtained from a phenomenological optical model analysis is found to be significantly shallower and more diffuse than the global systematics of stable nuclei, which is an indication that the spin-orbit potential is modified for scattering involving neutron-rich nuclei. A close similarity between the matter radius and the root-mean-square radius of the spin-orbit potential is also identified.
Keywords
Cite
@article{arxiv.1302.4237,
title = {Shallow and diffuse spin-orbit potential for proton elastic scattering from neutron-rich helium isotopes at 71 MeV/nucleon},
author = {S. Sakaguchi and T. Uesaka and N. Aoi and Y. Ichikawa and K. Itoh and M. Itoh and T. Kawabata and T. Kawahara and Y. Kondo and H. Kuboki and T. Nakamura and T. Nakao and Y. Nakayama and H. Sakai and Y. Sasamoto and K. Sekiguchi and T. Shimamura and Y. Shimizu and T. Wakui},
journal= {arXiv preprint arXiv:1302.4237},
year = {2015}
}
Comments
6 pages, 4 figures, accepted for publication in Physical Review C Rapid Communication