Experimental evidence for alpha-particle condensation from the Hoyle state deexcitation

Abstract : Fragmentation of quasi-projectiles from the nuclear reaction 40Ca+12C was used to produce excited states candidates to alpha-particle condensation. The methodology relies on high granularity 4π detection coupled to multi-particle correlations. Complete kinematic characterization reveals that 7.5±4.0% of the Hoyle state particle decays correspond to direct decay into three equal-energy alpha-particles. This is the first direct evidence for alpha-particle condensation in nuclei.
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Submitted on : Friday, April 27, 2012 - 11:00:29 AM
Last modification on : Friday, April 27, 2012 - 11:00:29 AM

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B. Borderie, Ad.R. Raduta, E. Geraci, N. Le Neindre, P. Napolitani, et al.. Experimental evidence for alpha-particle condensation from the Hoyle state deexcitation. International EFES-IN2P3 Conference on "Many Body Correlations from Dilute to Dense Nuclear Systems", MBC 2011, Feb 2011, Paris, France. 321, pp.012034, <10.1088/1742-6596/321/1/012034>. <in2p3-00691874>

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