Gamow-Teller and dipole strength in the 208Pb(n,p) reaction |
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| Affiliation: | 1. Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, Rome 00161, Italy;2. Mediterranea Cardiocentro-Napoli, Via Orazio, 2, 80122, Naples, Italy;3. Department of General and Specialized Surgery "Paride Stefanini", Sapienza University of Rome, Italy;4. Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, 40100, Latina, Italy |
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| Abstract: | Earlier data on the 208Pb(n,p)208Ti reaction at 198 MeV has been analysed using the multipole decomposition technique, and the contributions to the spectra from L = 0 and 1 transitions determined. The L = 0 cross section has been found to be smaller than values given by the calculations of MacFarlane [3] for Gamow-Teller transitions, using three different forms for the population of single particle states about the Fermi energy. Comparison is made with GT-strength values obtained from a more recent mean field calculation of these populations, and with an older nuclear structure calculation of properties of the lead nuclei. The L = 1 strength distribution is also reported. |
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