Fusion and decay in 24Mg+12C at 45 A MeV

✍ Scribed by M. Samri; F. Grenier; G.C. Ball; L. Beaulieu; L. Gingras; Zhi-Yong He; D. Horn; Y. Larochelle; X. Qian; R. Roy; C. St-Pierre

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 416 KB
• Volume: 700
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(01)01320-3

✦ Synopsis

Complete events with at least 83% of the total charge of the 24 Mg + 12 C system has been investigated at 45 A MeV with a large multidetector array. Central single-source events are selected by use of the Statistical Discriminant Analysis Method. Two-fragment reduced-velocity correlation functions are measured for the emission of intermediate-mass fragments from single-source events. Many-body trajectory calculations with a surface sequential model indicate an emission time of ≈ 400 fm/c suggesting that a large part of the single-source data can be described in a sequential decay picture. At the highest reconstructed excitation energy limit (≈ 8-10 A MeV), a mean emission time of ≈ 200 fm/c is deduced showing that part of the data may be explained by an instantaneous multifragmentation scenario.