High multiplicity α-particle breakup measurements to study α-condensate states

J. Bishop*, Tz Kokalova, M. Freer, M. Assie, L. Acosta, S. Bailey, G. Cardella, N. Curtis, E. De Filippo, D. Dell'Aquila, S. De Luca, L. Francalanza, B. Gnoffo, G. Lanzalone, I. Lombardo, N. Martorana, S. Norella, A. Pagano, E. V. Pagano, M. PapaS. Pirrone, G. Politi, F. Rizzo, P. Russotto, L. Quattrocchi, R. Smith, I. Stefan, A. Trifirò, M. Trimarchì, G. Verde, M. Vigilante, C. Wheldon

*Corresponding author for this work

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Abstract

An experiment was performed to investigate α-condensate states via high α-particle multiplicity breakup. The nucleus of interest was 28Si therefore to measure multiplicity 7 particle breakup events, a highly granular detector with a high solid angle coverage was required. For this purpose, the CHIMERA and FARCOS detectors at INFN LNS were employed. Particle identification was achieved through ΔE-E energy loss. The α-particle multiplicity was measured at three beam energies to investigate different excitation regimes in 28Si. At a beam energy where the energy is sufficient to provide the 7 α-particles with enough energy to be identified using the ΔE-E method, multiplicity 7 events can be seen. Given these high multiplicity events, the particles can be reconstructed to investigate the breakup of α-condensate states. Analysing the decay paths of these states can elucidate whether the state of interest corresponds to a non-cluster, clustered or condensed state.

Original languageEnglish
Article number012070
JournalJournal of Physics: Conference Series
Volume863
Issue number1
DOIs
Publication statusPublished - 4 Jul 2017

ASJC Scopus subject areas

  • General Physics and Astronomy

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