|
Hokkaido University Collection of Scholarly and Academic Papers >
Information Initiative Center >
Peer-reviewed Journal Articles, etc >
Angular distributions of elastic scattering of Σ- hyperons from nuclei and the Σ-nucleus potentials
| Title: | Angular distributions of elastic scattering of Σ- hyperons from nuclei and the Σ-nucleus potentials |
| Authors: | Harada, Toru Browse this author →KAKEN DB | | Hirabayashi, Yoshiharu Browse this author →KAKEN DB |
| Issue Date: | Jul-2012 |
| Publisher: | American Physical Society |
| Journal Title: | Physical Review C |
| Volume: | 86 |
| Issue: | 1 |
| Start Page: | 014606 |
| Publisher DOI: | 10.1103/PhysRevC.86.014606 |
| Abstract: | We theoretically investigate the elastic scattering of 50-MeV Σ- hyperons from 28Si and 208Pb in order to clarify the radial distribution of Σ-nucleus (optical) potentials. The angular distributions of differential cross sections are calculated using several potentials that can explain experimental data of the Σ- atomic x-ray and (π-, K+) reaction spectra simultaneously. The magnitude and oscillation pattern of the angular distributions are understood by the use of nearside/farside decompositions of their scattering amplitudes. It is shown that the resultant angular distributions provide a clue to discriminating among the radial distributions of the potentials that have a repulsion inside the nuclear surface and an attraction outside the nucleus with a sizable absorption. |
| Rights: | ©2012 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/49738 |
| Appears in Collections: | 情報基盤センター (Information Initiative Center) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 平林 義治
|
