VALDIR SCARDUELLI
3 resultados
Resultados de Busca
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Artigo IPEN-doc 23897 Spectroscopy of high lying resonances in 9Be produced with radioactive 8Li beams2014 - LEPINE-SZILY, A.; LEISTENSCHNEIDER, E.; MENDES JUNIOR, D.R.; DESCOUVEMONT, P.; LICHTENTHALER, R.; GUIMARAES, V.; FARIA, P.N. de; BARIONI, A.; PIRES, K.C.C.; MORCELLE, V.; PAMPA CONDORI, R.; MORAES, M.C.; SCARDUELLI, V.; ROSSI, E.; ZAGATTO, V.A.; SANTOS, H.; AGUIAR, V.A.P.; BRITOS, T.; ASSUNÇAO, M.; ZAMORA, J.C.; DUARTE, J.; SHORTO, J.M.B.We present the results of the 8Li(p,α)5He and 8Li(p,p)8Li reactions measured at the RIBRAS (Radioactive Ion Beams in Brazil) system. The experiment was realized in inverse kinematics using a thick [CH2]n polyethylene target and an incident 8Li beam, produced by RIBRAS. Using the thick target method, the complete excitation function could be measured between Ecm = 0.2 − 2.1 MeV, which includes the Gamow peak energy region. The excitation function of the 8Li(p,α)5He reaction, populating resonances between 16.888 and 19.0 MeV in 9Be, was obtained[1] and the resonances were fitted using R-matrix calculations. This study shed light on spins, parities, partial widths and isospin values of high lying resonances in 9Be. The measurement of the resonant elastic scattering 8Li(p,p)8Li populating resonances in the same energy region can constrain the resonance parameters. Preliminary results of the elastic scattering are also presented.Artigo IPEN-doc 16481 Elastic scattering and total reaction cross section for the 6 He + 58 Ni system2013 - MORCELLE, V.; LICHEMHALER, R.; LEPINE-SZILY, A.; GUIMARÃES, V.; MENDES JUNIOR, D.R.; PIRES, K.C.C.; FARIA, P.N. de; BARIONI, A.; GASQUES, L.; MORAIS, M.C.; SHORTO, J.M.B.; ZAMORA, J.C.; SCARDUELLI, V.; PAMPA CONDORI, R.; LEISTENSCHNEIDER, E.Elastic scattering measurements of 6He +58Ni system have been performed at the laboratory energy of 21.7 MeV. The 6He secondary beam was produced by a transfer reaction 9Be (7Li, 6He) and impinged on 58Ni and 197Au targets, using the Radioactive Ion Beam (RIB) facility, RIBRAS, installed in the Pelletron Laboratory of the Institute of Physics of the University of São Paulo, Brazil. The elastic angular distribution was obtained in the angular range from 150 to 800 in the center of mass frame. Optical model calculations have been performed using a hybrid potential to fit the experimental data. The total reaction cross section was derived.Artigo IPEN-doc 21357 Recent results on reactions with radioactive beams at RIBRAS (Radioactive Ion Beams in Brazil)2014 - LEPINE SZILY, A.; LICHTENTHALER, R.; GUIMARAES, V.; ARAZI, A.; BARIONI, A.; BENJAMIM, E.A.; FARIA, P.N. de; DESCOUVEMONT, P.; GASQUES, L.R.; LEISTENSHNEIDER, E.; MENDES JUNIOR, D.R.; MORAIS, M.C.; MORCELLE, V.; MORO, A.M.; PAMPA CONDORI, R.; PIRES, K.C.C.; RODRIGUEZ GALLARDO, M.; SCARDUELLI, V.; SHORTO, J.M.B.; ZAMORA, J.C.