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HK: Physik der Hadronen und Kerne

HK 10: Poster Session: Nuclear Structure/Spectroscopy

HK 10.17: Poster

Tuesday, March 9, 2004, 13:30–15:30, Foyer

²⁰⁸Pb(p,p’) via IAR and the shell model — •Andreas Heusler¹, Peter von Brentano², Gerhard Graw³, Ralf Hertenbeger³, and Hans-Friedrich Wirth³ — ¹MPI für Kernphysik, Heidelberg, Germany — ²Institut f. Kernphysik, Uni Köln, Germany — ³LMU München, Germany supported by MLL and DFG C4-Gr894/2-3

Spectra of ²⁰⁸Pb(p,p’) were measured on all IAR between E_p=14.9 and 17.8 MeV in ²⁰⁹Bi at scattering angles 20 ^∘− 115 ^∘ with an energy resolution of 4 · 10⁻⁴ and a background less than 2 · 10⁻³ for strong lines. From the angular distributions neutron particle-hole shell model configurations can be determined; in some cases also spins can be derived. Assuming a nearly complete neutron and proton particle-hole configuraion space for some subset of states in ²⁰⁸Pb, the residual interaction among particle-holes states can be determined. The identification of the states in ²⁰⁸Pb is crucial. Special care was taken to measure small components of particle-hole configurations, since they enter into the orthogonality in a sensitive manner.