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Damping mechanisms of the Delta resonance in nuclei

B. Koerfgen·P. Oltmanns·F. Osterfeld·T. Udagawa
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Abstract

The damping mechanisms of the Delta(1232) resonance in nuclei are studied by analyzing the quasi-free decay reactions 12C(pi+,pi+ p)11B and 12C(3He,t pi+ p)11B and the 2p emission reactions 12C(pi+,pp)10B and 12C(3He,t pp)10B. The coincidence cross sections are calculated within the framework of the isobar-hole model. It is found that the 2p emission process induced by the decay of the Delta resonance in the nucleus can be consistently described by a pi+rho+g' model for the Delta+N -> N+N decay interaction.

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B. Koerfgen, P. Oltmanns, F. Osterfeld, T. Udagawa. 1996-12-17. Damping mechanisms of the Delta resonance in nuclei. https://doi.org/10.1103/physrevc.55.1819

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