| Issue |
EPJ Web of Conferences
Volume 31, 2012
IWM2011 – International workshop on Multifragmentation and Related Topics
|
|
|---|---|---|
| Article Number | 00034 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/epjconf/20123100034 | |
| Published online | 05 July 2012 | |
https://doi.org/10.1051/epjconf/20123100034
Direct evidence of α-particle condensation for the Hoyle state
1 Institut de Physique Nucléaire, CNRS/IN2P3, Université Paris-Sud 11, Orsay, France
2 National Institute for Physics and Nuclear Engineering, POB-MG6, 077125, Bucharest-Măgurele, Romania
3 INFN-Catania and Dipartimento di Fisica e Astronomia, Università di Catania, Italy
4 LPC, CNRS/IN2P3, ENSICAEN, Université de Caen, Caen, France
The fragmentation of quasi-projectiles from the nuclear reaction 40Ca+12C at 25 MeV/nucleon was used to produce excited states candidates to α-particle condensation. Complete kinematic characterization of individual decay events, made possible by the CHIMERA high-granularity 4π charged particle multi-detector, reveals that 7.5±4.0 % of the Hoyle state particle decays correspond to direct decays in three equal-energy α-particles. Moreover, events with increased kinetic energy dispersion in the 12C center of mass, which amount to 9.5±4.0 %, point toward the occurrence of a second competing molecular configuration, of a linear α-chain.
© Owned by the authors, published by EDP Sciences - SIF, 2012
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.