Formation of mesic nuclei by (��,p) reactions

Authors :: Nagahiro, H.
Jido, D.
Hirenzaki, S.
Publication Year :: 2005
Publisher :: arXiv, 2005.
Abstract: We present a theoretical study on formation rates of ��and ��meson-nucleus systems induced by (��,p) reactions on nuclear targets at ideal recoilless condition. We find that the smaller distortion effect in the (��,p) reaction enables us to investigate properties of the mesons created deeply inside nucleus more clearly. We also consider excitation of scalar-isoscalar (��) mode in nucleus in order to investigate spectral enhancement around two-pion threshold caused by partial restoration of chiral symmetry. We conclude that valuable information of meson-nucleus interactions can be extracted from global structure of the missing mass spectra in the (��,p) reaction.<br />38 pages, 3 tables, 12 figures, submitted to Nucl.Phys.A, minor corrections, added several references