Formation of mesic nuclei by (γ,p) reactions

Details Formation of mesic nuclei by (γ,p) reactions Formation of mesic nuclei by (γ,p) reactions

2005-04-28

arxiv.org/abs/nucl-th/0504081v3

Nucl.Phys. A761 (2005) 92-119

Physics

Nuclear Physics

Nuclear Theory

38 pages, 3 tables, 12 figures, submitted to Nucl.Phys.A, minor corrections, added several references

Scientific paper

10.1016/j.nuclphysa.2005.07.001

We present a theoretical study on formation rates of \eta and \omega meson-nucleus systems induced by (\gamma,p) reactions on nuclear targets at ideal recoilless condition. We find that the smaller distortion effect in the (\gamma,p) reaction enables us to investigate properties of the mesons created deeply inside nucleus more clearly. We also consider excitation of scalar-isoscalar (\sigma) 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 (\gamma,p) reaction.

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