An experiment was performed to investigate α-condensate states via high α-particle multiplicity breakup. The nucleus of interest was28Si 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 in28Si. 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.

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

Acosta, L.;Cardella, G.;De Filippo, E.;Dell'Aquila, D.;Francalanza, L.;Gnoffo, B.;Lanzalone, G.;Martorana, N.;Pagano, E. V.;Papa, M.;Politi, G.;Rizzo, F.;Russotto, P.;Quattrocchi, L.;Trimarchì, M.;
2017

Abstract

An experiment was performed to investigate α-condensate states via high α-particle multiplicity breakup. The nucleus of interest was28Si 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 in28Si. 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.
Physics and Astronomy (all)
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11769/316736
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