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Production of $\alpha$-particle condensate states in heavy-ion collisions

Abstract : The fragmentation of quasi-projectiles from the nuclear reaction $^{40}Ca$ + $^{12}C$ at 25 MeV/nucleon was used to produce excited states candidates to $\alpha$-particle condensation. The experiment was performed at LNS-Catania using the CHIMERA multidetector. Accepting the emission simultaneity and equality among the $\alpha$-particle kinetic energies as experimental criteria for deciding in favor of the condensate nature of an excited state, we analyze the $0_2^+$ and $2_2^+$ states of $^{12}$C and the $0_6^+$ state of $^{16}$O. A sub-class of events corresponding to the direct 3-$\alpha$ decay of the Hoyle state is isolated.
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Contributor : Michel Lion <>
Submitted on : Wednesday, September 8, 2010 - 9:32:15 AM
Last modification on : Wednesday, September 16, 2020 - 4:08:32 PM

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Ad.R. Raduta, B. Borderie, E. Geraci, N. Le Neindre, P. Napolitani, et al.. Production of $\alpha$-particle condensate states in heavy-ion collisions. 2nd Workshop on "State of the Art in Nuclear Cluster Physics" (SOTANCP2), May 2010, Bruxelles, Belgium. pp.902-905, ⟨10.1142/S0218301311018939⟩. ⟨in2p3-00515835⟩



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