Alpha-particle condensation in excited 12C

Ad. R. Raduta; B. Borderie; E. Geraci; N. Le Neindre; P. Napolitani; M. F. Rivet; R. Alba; F. Amorini; G. Cardella; M. Chatterjee; E. De Filippo; D. Guinet; P. Lautesse; E. La Guidara; G. Lanzalone; G. Lanzano; I. Lombardo; O. Lopez; C. Maiolino; A. Pagano; S. Pirrone; G. Politi; F. Porto; F. Rizzo; P. Russotto; J. P. Wieleczko

arXiv · 1004.3234

Alpha-particle condensation in excited 12C

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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 methodology relies on high granularity 4$\pi$ detection coupled to correlation function techniques. Under the assumption that the equality among the kinetic energies of the emitted $\alpha$-particles and the emission simultaneity constitutes a reliable fingerprint of $\alpha$ condensation, we identify several tens of events corresponding to the deexcitation of the Hoyle state of $^{12}$C which fulfill the condition.

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Ad. R. Raduta, B. Borderie, E. Geraci, N. Le Neindre, P. Napolitani, M. F. Rivet, R. Alba, F. Amorini, G. Cardella, M. Chatterjee, E. De Filippo, D. Guinet, P. Lautesse, E. La Guidara, G. Lanzalone, G. Lanzano, I. Lombardo, O. Lopez, C. Maiolino, A. Pagano, S. Pirrone, G. Politi, F. Porto, F. Rizzo, P. Russotto, J. P. Wieleczko. 2010-04-19. Alpha-particle condensation in excited 12C. https://arxiv.org/abs/1004.3234

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