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Study of reaction dynamics through the correlation function of fragments from heavy-ion collisions
Jaeyong Yee,Gary Westfall 한국물리학회 2004 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.44 No.2
Intermediate mass fragments (IMFs: 3 Z 18) in coincidence with ssion-like fragments were measured in the reaction 40Ar+232Th at Ebeam = 15 - 115 A MeV. Three distinct sources of IMF emission were identied by using the azimuthal angular correlation function among two ssion-like fragments and an IMF. Variations of the respective contributions of the three emission modes to the IMF multiplicity with the beam energy were estimated. Pre-ssion emission gains dominance in this energy range while the evaporation from the ssion-like fragments decreases to the point that its importance becomes comparable to that of simultaneous ternary breakup.