Fallot M, Scarpaci JA, Frascaria N, Blumenfeld Y, Chbihi A, Chomaz P, Désesquelles P, Frankland J, Khan E, Laville JL, Plagnol E, Pollacco EC, Roussel-Chomaz P, Roynette JC, Shrivastava A, Zerguerras T. Evidence for a three-phonon giant resonance state in 40Ca nuclei.
Phys Rev Lett 2006;
97:242502. [PMID:
17280273 DOI:
10.1103/physrevlett.97.242502]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2006] [Revised: 10/27/2006] [Indexed: 05/13/2023]
Abstract
Inelastic scattering of 40Ca on 40Ca at 50 MeV/A has been measured in coincidence with protons at the GANIL facility. The SPEG spectrometer was associated with 240 CsI(Tl) scintillators of the INDRA 4pi array, allowing for the measurement of complete decay events. The missing energy method was applied to these events. For events with excitation energy between 42 and 55 MeV, a direct decay branch by three protons towards the low energy states of 37Cl gives the first evidence for a 3-phonon state built with giant resonances.
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