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Hussein, M.S.; Pessoa, E.F.; Schelin, H.R.; Carlson, B.V.; Douglas, R.A.
Sao Paulo Univ. (Brazil). Inst. de Fisica1985
Sao Paulo Univ. (Brazil). Inst. de Fisica1985
AbstractAbstract
[en] The elastic enhancement factor in charge exchange reactions proceeding via the compound nucleus, predicted to attain the value of 2 in the weak isospin mixing regime by Harney, Weidenmuller and Richter five years ago, is tested here in the system 11B(p,n)11C at < E sub(p)> = 14.3 MeV. Both the DWBA and Hauser-Feshbach calculations employed in the analysis are used in a way which physically simulates a two coupled-channels model. Our results show an enhancement factor larger than 1 indicating that isospin is mainly conserved in this reaction. (Author)
[pt]
Testa-se aqui o fator de aumento elastico nas reacoes de troca de carga procedendo via a nucleo composto, previsto para ter o valor de 2 no regime de mistura de isospin fraco por Harney, Weidenmuller e Richter cinco anos atras, no sistema 11B(p,n)11C a < E sub(p)> = 14.3 MeV. Usam-se os calculos DWBA e Hauser-Feshbach empregados na analise numa maneira que estimula fisicamente um modelo de dois canais acoplados. Os resultados mostram um fator de aumento maior do que 1 indicando que o isospin e conservado principalmente nessa reacao. (L.C.)Primary Subject
Secondary Subject
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1985; 19 p
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Report
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Numerical Data
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BARYON REACTIONS, BARYONS, BETA DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, BORN APPROXIMATION, CARBON ISOTOPES, CROSS SECTIONS, DATA, ELEMENTARY PARTICLES, ENERGY RANGE, EVEN-ODD NUCLEI, FERMIONS, HADRON REACTIONS, HADRONS, INFORMATION, ISOTOPES, LIGHT NUCLEI, MEV RANGE, MINUTES LIVING RADIOISOTOPES, NUCLEAR REACTIONS, NUCLEAR THEORY, NUCLEI, NUCLEON REACTIONS, NUCLEONS, NUMERICAL DATA, PARTICLE PROPERTIES, RADIOISOTOPES, SCATTERING, TARGETS
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