| Literature DB >> 12190516 |
H Noumi1, P K Saha, D Abe, S Ajimura, K Aoki, H C Bhang, T Endo, Y Fujii, T Fukuda, H C Guo, K Imai, O Hashimoto, H Hotchi, E H Kim, J H Kim, T Kishimoto, A Krutenkova, K Maeda, T Nagae, M Nakamura, H Outa, M Sekimoto, T Saito, A Sakaguchi, Y Sato, R Sawafta, Y Shimizu, T Takahashi, L Tang, H Tamura, K Tanida, T Watanabe, H H Xia, S H Zhou, L H Zhu, X F Zhu.
Abstract
We have studied the (pi(-),K+) reaction on a silicon target to investigate the sigma-nucleus potential. The inclusive spectrum was measured at a beam momentum of 1.2 GeV/c with an energy resolution of 3.3 MeV (FWHM) by employing the superconducting kaon spectrometer system. The spectrum was compared with theoretical calculations within the framework of the distorted-wave impulse approximation, which demonstrates that a strongly repulsive sigma-nucleus potential with a nonzero size of the imaginary part reproduces the observed spectrum.Year: 2002 PMID： 12190516 DOI： 10.1103/PhysRevLett.89.072301
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161