Electromagnetic excitation of the double giant dipole resonance in Xe136

R. Schmidt, Th Blaich, Th W. Elze, H. Emling, H. Freiesleben, K. Grimm, W. Henning, R. Holzmann, J. G. Keller, H. Klingler, R. Kulessa, J. V. Kratz, D. Lambrecht, J. S. Lange, Y. Leifels, E. Lubkiewicz, E. F. Moore, E. Wajda, W. Prokopowicz, Ch SchütterH. Spies, K. Stelzer, J. Stroth, W. Walus, H. J. Wollersheim, M. Zinser, E. Zude

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Abstract

The nuclear response of a medium-mass nucleus (136Xe) to electromagnetic excitation in a near-relativistic heavy-ion collision was investigated in the reaction136Xe(0.7A GeV)+Pb. From an exclusive measurement of the neutron decay of the excited Xe136 projectiles, strong excitations of giant resonances and, in particular, of the double isovector giant dipole resonance were identified. A resonance energy of 28.3±0.7 MeV, a width of 6.3±1.6 MeV, and a total cross section of 215±50 mb were found for the double giant dipole resonance.

Original languageEnglish
Pages (from-to)1767-1770
Number of pages4
JournalPhysical Review Letters
Volume70
Issue number12
DOIs
StatePublished - 1993
Externally publishedYes

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