Abstract
We present a three source analysis of velocity spectra of light charged particles (LCP) and neutrons emitted in the reaction 40Ar+27Al at 44A MeV. The light particle (LP) velocity spectra are studied as a function of the detection angle (1.5°<θ<172°) and of the charge of the forward detected projectile-like fragment (PLF). The temperature parameter, the velocity and the intensity of each source are extracted as a function of the PLF charge. While the temperature parameters for PLF and target-like fragments (TLF) are very similar and show a dependence on the PLF charge, the temperature parameter for the intermediate source is approximately 15 MeV, independent of the PLF charge. Comparison with temperature values extracted from double isotopic ratios, shows an agreement only between the temperature values extracted from formula involving 3He, 4He, d, t ratios and the PLF proton temperature parameter. The characteristics of the PLF sources are derived. Present results are discussed with regards to the degree of thermalization which could be achieved in the PLF and TLF sources.
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