New Giant Resonances in 172-MeV alpha Scattering from Pb-208 - INSPIRE

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New Giant Resonances in 172-MeV alpha Scattering from Pb-208

Aug 4, 1980

3 pages

Published in:

Phys.Rev.Lett. 45 (1980) 337-340

DOI:

10.1103/PhysRevLett.45.337

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Abstract: (APS)

Spectra of 172-MeV α scattering from Pb208 indicate in addition to giant monopole and quadrupole excitation new giant resonance structures in hadron scattering at Ex=17.5±0.8 and 21.3±0.8 MeV with corresponding widths of 4.8±0.8 and 5.9±0.8 MeV. The angular distributions indicate L=3 and 1 giving rise to an interpretation as isoscalar giant octupole resonance (17.5 MeV, 60% energy-weighted sum-rule strength), and isoscalar giant dipole resonance (21.3 MeV, 90% energy-weighted sum-rule strength).

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References(19)

Figures(0)

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