Inelastic α -particle scattering at intermediate energy
1979; American Institute of Physics; Volume: 19; Issue: 4 Linguagem: Inglês
10.1103/physrevc.19.1438
ISSN1538-4497
AutoresTh. S. Bauer, R. Beurtey, A. Boudard, G. Bruge, H. Catz, P. Couvert, J.L. Escudié, J.M. Fontaine, M. Garçon, J.C. Lugol, M. Matoba, S. Platchkov, M. Rouger, Y. Terrien,
Tópico(s)Particle physics theoretical and experimental studies
ResumoThe rigid body approximation is used to extend the Glauber formalism to the analysis of inelastic scattering of 1.37 GeV $\ensuremath{\alpha}$ particles by $^{24}\mathrm{Mg}$ and $^{58}\mathrm{Ni}$. Angular distributions for low-lying states in $^{24}\mathrm{Mg}$ and $^{58}\mathrm{Ni}$ are analyzed in this framework together with previously published data for Ca isotopes. Intermediate energy $\ensuremath{\alpha}$ particle scattering is tested as a tool to observe the isoscalar giant quadrupole resonance. Energy weighted sum rules are drawn from the analysis of $L=2$ angular distributions measured in the proper energy range. Comparison is made with existing data.NUCLEAR REACTIONS $^{40,42,44}\mathrm{Ca}$ ($\ensuremath{\alpha}$,${\ensuremath{\alpha}}^{\ensuremath{'}}$), $^{24}\mathrm{Mg}$ ($\ensuremath{\alpha}$,${\ensuremath{\alpha}}^{\ensuremath{'}}$), $^{58}\mathrm{Ni}$ ($\ensuremath{\alpha}$,${\ensuremath{\alpha}}^{\ensuremath{'}}$), ${E}_{\ensuremath{\alpha}}=1.370$ GeV. Measured $\ensuremath{\sigma}(\ensuremath{\theta})$, Glauber type analysis. Isoscalar resonances. Deduced ${{\ensuremath{\beta}}_{L}}^{2}$.
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