G. Bagieu

A coupled-channels analysis of 30 MeV proton scattering from low-lying positive-parity states in 19F, 20Ne, 21Ne

Abstract Angular distributions have been measured for the scattering of 30 MeV protons from the strongly excited low-lying positive-parity states in 19 F, 20 Ne and 21 Ne. Coupled-channels calculations yield evidence for a large β 4 deformation in 20 Ne (+0.28 ± 0.05) and in 19 F (+0.14 ± 0.04). The analysis of the 21 Ne data indicates a possible small hexadecapole deformation below +0.05.

Feasibility of a solar neutrino detector based on fluorine and indium

Abstract The feasibility of a complete program of solar neutrino spectroscopy using scintillating crystals containing Indium and Fluorine is examined.

Inelastic scattering of 40 MeV polarized protons exciting the low-lying 2+ states in 90Zr and 92Zr

Abstract Cross sections and analyzing powers for 40 MeV polarized protons from the low-lying 2 + states in 90 Zr and 92 Zr have been measured. Very good agreement has been obtained with the coupled-channels collective model using the full Thomas deformed spin-orbit term. The microscopic model including core polarization also gives an excellent description of these states, in contrast to the situation at lower energies where this model was unable to reproduce the data.

Macroscopic and microscopic model analysis of inelastic scattering of 30 MeV polarized protons from 90,92Zr and 92Mo

Abstract Angular distributions for 30 MeV polarized proton inelastic scattering and analyzing powers were measured for low-lying 2+, 3−, and 5− states in 90,92Mo. These are compared with coupled channel collective model and microscopic model calculations.

Determination of the multipole deformation parameters of238U by 22MeV proton inelastic scattering

Inelastic scattering 22MeV proton from238U has been studied. Angular distributions of the states of the rotational band have been measured. Coupled-channel analysis allows determination of the deformation parametersβ2,β4 andβ6. These values are somewhat in disagreement with other experimental results.

Inelastic Scattering of 30 MeV Polarized Protons from 90,92Zr and 92Mo

Previously reported measurement of inelastic scattering of 20.3 MeV polarized protons from 90Zr, 92Zr and 92Mo 1) have shown poor agreement between the predictions of the nuclear collective model and the analyzing power for the first 2+ states in these nuclei, although the corresponding cross-sections for these states were well reproduced by the model. On the other hand, the analyzing power for the low-lying 3− states in these nuclei were fairly well reproduced. Although the agreement between the analyzing power and the coupled-channels collective model calculations were somewhat improved by the introduction of the “full Thomas term” of the distorted spin-orbit potential, the overall agreement remains poor for the 2+ analyzing power.

Microscopic Model Analysis of 30 MeV Polarized Protons Inelastic Scattering from 90 Zr and 92 Mo

Microscopic model calculations have been performed in the frame-work of the DWBA formalism, using the program DWBA 70 1). This program allows a complete treatment of central (S), spin-orbit (LS), and tensor (T) terms as well as full antisymmetrization of the N-N interaction, with radial form factors of the Yukawa type. The scattering amplitude is given by

Study of Deuteron-Cluster Deformation Using the ReactionLi6(d, tp)He4

{T_A} = {\lambda _p}{T_A}^{\left( p \right)} + {\lambda _n}{T_A}^{\left( n \right)}