Large cross-section reaction channels were measured in the systems Li-6(Li-7) + Pb-208 With high statistical accuracy at 5(3) energies around the Coulomb barrier from 29 to 39 MeV. These channels were assigned (mainly) to the breakup of Li-6, very loosely bound, into alpha + d and to the breakup of Li-5, produced by n-transfer to the target, into alpha + p and to similar processes with Li-7 beam. The cross-sections with Li-6, S-alpha = 1.475 MeV, are systematically larger than the Li-7 ones. This reflects, most likely, the higher binding energy of Li-7, S-alpha = 2.468 MeV. Theoretical predictions for the Li-6 + Pb-208 system which include for Li-6 breakup to continuum states within a continuum discretized coupled-channels approach (CDCC) and resonant breakup plus n-transfer with DWBA reproduce the angular distribution shapes but still underestimate the cross-sections by a factor similar to 3.
Strong reaction channels at barrier energies in the system Li-6+Pb-208 / Signorini, C; Mazzocco, M; Prete, Gf; Soramel, F; Stroe, L; Andrighetto, A; Thompson, Ij; Vitturi, A; Brondi, A; Cinausero, M; Fabris, D; Fioretto, E; Gelli, N; Guo, Jy; La Rana, G; Liu, Zh; Lucarelli, Franco; Moro, R; Nebbia, G; Trotta, M; Vardaci, E; Viesti, G.. - In: THE EUROPEAN PHYSICAL JOURNAL. A, HADRONS AND NUCLEI. - ISSN 1434-6001. - STAMPA. - 10:(2001), pp. 249-253. [10.1007/s100500170109]
Strong reaction channels at barrier energies in the system Li-6+Pb-208
LUCARELLI, FRANCO;
2001
Abstract
Large cross-section reaction channels were measured in the systems Li-6(Li-7) + Pb-208 With high statistical accuracy at 5(3) energies around the Coulomb barrier from 29 to 39 MeV. These channels were assigned (mainly) to the breakup of Li-6, very loosely bound, into alpha + d and to the breakup of Li-5, produced by n-transfer to the target, into alpha + p and to similar processes with Li-7 beam. The cross-sections with Li-6, S-alpha = 1.475 MeV, are systematically larger than the Li-7 ones. This reflects, most likely, the higher binding energy of Li-7, S-alpha = 2.468 MeV. Theoretical predictions for the Li-6 + Pb-208 system which include for Li-6 breakup to continuum states within a continuum discretized coupled-channels approach (CDCC) and resonant breakup plus n-transfer with DWBA reproduce the angular distribution shapes but still underestimate the cross-sections by a factor similar to 3.File | Dimensione | Formato | |
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Strong reaction channels at barrier energies in the system Li-6+Pb-208.pdf
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