Angular distributions of elastic scattering of Σ- hyperons from nuclei and the Σ-nucleus potentials

Harada, Toru; Hirabayashi, Yoshiharu

Physical Review C, 2012, 86(1), 014606

Permalink : https://hdl.handle.net/2115/49738

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アクセス権	open access
URI	https://hdl.handle.net/2115/49738
タイトル	Angular distributions of elastic scattering of Σ- hyperons from nuclei and the Σ-nucleus potentials
著者	e-Rad_Researcher 70238187 著者名 Harada, Toru
著者	e-Rad_Researcher 60271714 著者名 Hirabayashi, Yoshiharu
言語	英語
発行日	2012-07
出版者	American Physical Society
収録物名	Physical Review C
巻(号)	86(1)
ページ	014606
抄録	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.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	©2012 American Physical Society
PISSN	0556-2813
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevC.86.014606