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Planeta, R.; Gawlikowicz, W.; Grotowski, K.; Brzychczyk, J.; Ciszek, T.; Cole, A.J.; Desesquelles, P.; Micek, S.; Pawlowski, P.; Sosin, Z.; Wieloch, A.; Benchekroun, D.; Bisquer, E.; Chabane, A.; Charvet, M.; Cheynis, B.; Demeyer, A.; Gerlic, E.; Giorni, A.; Guinet, D.; Heuer, D.; Lautesse, P.; Lebreton, L.; Lleres, A.; Stern, M.; Vagneron, L.; Viano, J.B.
Acta physica Polonica, B, 2000, Letnik: 31Journal Article
The properties of the multifragmentation of ``hot sources'' produced in the 40Ca +40Ca reaction have been studied at a beam energy 35 MeV/nucleon. Two signatures of prompt multifragmentation, which make use of special features of particle emission from the ``freeze out volume'', together with an analysis of the reduced relative velocity between pairs of intermediate mass fragments, indicate the presence of a transition from sequential decay to prompt multifragmentation at an excitation energy of about 3 MeV/nucleon.
