Published December 1988
| Version v1
Journal article
Virtual photon spectra for finite nuclei
Description
The experimental results of an isochromat of the virtual photon spectrum, obtained by measuring the number of ground-state protons emitted by the 16.28 MeV isobaric analogue state in 90Zr as a function of electron incident energy in the range 17-105 MeV, are compared with the values predicted by a calculation of the E1 DWBA virtual photon spectra for finite nuclei. It is found that the calculations are in excellent agreement with the experimental results. The DWBA virtual photon spectra for finite nuclei for E2 and M1 multipoles are also assessed. (author)
Abstract (Portuguese)
Os resultados experimentais referentes a medida de uma isocromata do espectro de fotons virtuais, a qual foi efetuada detectando-se o numero de protons que decaem para o estado fundamental, emitidos pelo estado analogo de energia 16.28 MeV no 90Zr, em funcao da energia do eletron incidente na faixa de 17-105 MeV, sao comparados com os valores previstos pelo calculo do espectro de fotons virtuais E1, efetuado na aproximacao DWBA e considerando o tamanho finito do nucleo. Verifica-se que os calculos estao em excelente acordo com os resultados experimentais. Os calculos de espectros de fotons virtuais, em DWBA e para nucleos finitos, para multipolos E2 e M1 tambem sao discutidos. (autor)Additional details
Publishing Information
- Journal Title
- Revista Brasileira de Fisica
- Journal Volume
- 18
- Journal Issue
- 4
- Series
- Rev. Bras. Fis.
- Journal Page Range
- 508-524
- ISSN
- 0374-4922
- CODEN
- RBFSA
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 20051132
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- COMPARATIVE EVALUATIONS; CROSS SECTIONS; DWBA; ELECTRON REACTIONS; ENERGY SPECTRA; E1-TRANSITIONS; E2-TRANSITIONS; MEV RANGE 10-100; MEV RANGE 100-1000; M1-TRANSITIONS; PHOTONS; PHOTONUCLEAR REACTIONS; VIRTUAL PARTICLES; ZIRCONIUM 90
- Descriptors DEC
- BORN APPROXIMATION; BOSONS; ELEMENTARY PARTICLES; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVALUATION; EVEN-EVEN NUCLEI; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LEPTON REACTIONS; MASSLESS PARTICLES; MEV RANGE; MILLISEC LIVING RADIOISOTOPES; MULTIPOLE TRANSITIONS; NUCLEAR REACTIONS; NUCLEI; RADIOISOTOPES; SPECTRA; STABLE ISOTOPES; ZIRCONIUM ISOTOPES