Fine structure of the giant isoscalar quadrupole resonance in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>208</mn></mrow></msup></mrow></math>Pb observed in high-resolution <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mo>(</mo><mi>e</mi><mo>,</mo><mi>e</mi></mrow><mrow><mo>′</mo></mrow></msup></mrow><mo>)</mo></math> and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mo>(</mo><mi>p</mi><mo>,</mo><mi>p</mi></mrow><mrow><mo>′</mo></mrow></msup></mrow><mo>)</mo></math> experiments

S. Kamerdzhiev; J. Lisantti; P. von Neumann-Cosel; A. Richter; G. Tertychny; J. Wambach

doi:10.1103/PhysRevC.55.2101

Fine structure of the giant isoscalar quadrupole resonance in $^{208}$ Pb observed in high-resolution ${(e, e}^{'})$ and ${(p, p}^{'})$ experiments

S. Kamerdzhiev, J. Lisantti, P. von Neumann-Cosel, A. Richter, G. Tertychny, and J. Wambach

Phys. Rev. C 55, 2101 – Published 1 April 1997

Abstract

High-resolution ${(e, e}^{'})$ and ${(p, p}^{'})$ spectra for the isoscalar giant quadrupole resonance in $^{208}$ Pb are presented. Fine structure that has been observed hitherto in ${(e, e}^{'})$ is now also seen in ${(p, p}^{'})$ and found to be very similar in both experiments. Comparison with results from model calculations reveals the coupling of the random phase approximation modes to surface vibrations as a main source of this fine structure.

Received 4 September 1996

DOI:https://doi.org/10.1103/PhysRevC.55.2101

Authors & Affiliations

S. Kamerdzhiev^1,2, J. Lisantti³, P. von Neumann-Cosel⁴, A. Richter⁴, G. Tertychny^1,2, and J. Wambach^4,5

¹Institut für Kernphysik, Forschungszentrum Jülich, D-52428 Jülich, Germany
²State Scientific Centre, Institute of Physics and Power Engineering, 249020 Obninsk, Russia
³Centenary College of Louisiana, Shreveport, Louisiana 71134
⁴Institut für Kernphysik, Technische Hochschule Darmstadt, D-64289 Darmstadt, Germany
⁵Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801

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Vol. 55, Iss. 4 — April 1997

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Physical Review C

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