Published January 1986 | Version v1
Report Open

Isospin mixing in compound nuclear reactions: a study in the 11B(p,n)11C system at Ep = 14.3 MeV

Creators

  • 1. Sao Paulo Univ. (Brazil). Inst. de Fisica
  • 2. Centro Tecnico Aeroespacial, Sao Jose dos Campos (Brazil). Inst. de Estudos Avancados
  • 3. Universidade Estadual de Campinas (Brazil). Inst. de Fisica

Description

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, is tested in the system 11B(p,n)11C at = 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)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (Portuguese)

O fator de aumento elastico no processo de reacoes de troca de carga via nucleo composto, previsto para atingir o valor 2 no regime de mistura isospin fraco, e testado no sistema 11B(p,n)11C a = 14.3 MeV. Os calculos de DWBA e Hauser-Feshbach empregados na analise sao usados, de modo que simula fisicamente um modelo de dois canais acoplados. Os resultados mostram um fator de aumento maior que 1 indicando que o isospin e conservado nesta reacao. (M.C.K.)

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Additional details

Publishing Information

Imprint Pagination
17 p.
Report number
IFUSP-P--566

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
18075469
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
BORON 11 TARGET; CARBON 11; COUPLED CHANNEL THEORY; DWBA; HAUSER-FESHBACH THEORY; ISOSPIN; MEV RANGE 10-100; NEUTRONS; PROTON REACTIONS
Descriptors DEC
BARYON REACTIONS; BARYONS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BORN APPROXIMATION; CARBON ISOTOPES; ELEMENTARY PARTICLES; ENERGY RANGE; EVEN-ODD NUCLEI; FERMIONS; HADRON REACTIONS; HADRONS; ISOTOPES; LIGHT NUCLEI; MEV RANGE; MINUTES LIVING RADIOISOTOPES; NUCLEAR REACTIONS; NUCLEAR THEORY; NUCLEI; NUCLEON REACTIONS; NUCLEONS; PARTICLE PROPERTIES; RADIOISOTOPES; TARGETS