Production Spectra of the [Sigma]NN Quasibound States in ^sup 3^He(K^sup -^, [pi]^sup ^) Reactions

• Published in: Few-body systems Vol. 54; no. 7-10; p. 1205
• Main Authors: Harada, Toru, Hirabayashi, Yoshiharu
• Format: Journal Article
• Language: English
• Published: Wien Springer Nature B.V 01.08.2013
• Subjects: Nuclear physics
• ISSN: 0177-7963; 1432-5411
• DOI: 10.1007/s00601-013-0673-6

(ProQuest: ... denotes formulae and/or non-USASCII text omitted; see image) Issue Title: FB20 Proceedings We theoretically demonstrate the inclusive and semiexclusive spectra in the ^sup 3^He (K ^sup -^, [pi] ^sup ^) reactions at 600 MeV/c (4°) within a distorted-wave impulse approximation, using a coupled (2N - [Lambda]) + (2N - [Sigma]) model with a spreading potential. It is shown that a signal of a ... quasibound state is clearly observed near the [Sigma] threshold in the [pi] ^sup -^ spectrum, whereas a peak of a ... quasibound state is relatively reduced in the [pi] ^sup +^ spectrum. The mechanism of [Sigma] production for these spectra is discussed.[PUBLICATION ABSTRACT]