Nuclear multifragmentation and fission: Similarity and differences

Abstract

Thermal multifragmentation of hot nuclei is interpreted as the nuclear liquid-fog phase transition deep inside the spinodal region. The experimental data for p(8.1GeV) + Au collisions are analyzed. It is concluded that the decay process of hot nuclei is characterized by two size parameters: transition state and freeze-out volumes. The similarity between dynamics of fragmentation and ordinary fission is discussed. The IMF emission time is related to the mean rupture time at the multi-scission point, which corresponds to the kinetic freeze-out configuration.

Correlations between critical parameters and bulk properties of nuclear matter

“…III, we show how correlations of RMF model emerges, motivated by results presented in the previous section. We also compare our findings with theoretical results of former investigations [12][13][14][15], and with available experimental values concerning T c , P c and ρ c of infinite symmetric nuclear matter [14,[16][17][18][19][20][21]. We show which parametrizations are compatible with experimental data, by combining the critical parameters values with other bulk parameters constraints, such as one related to the effective nucleon mass.…”

“…A direct comparison of our findings for T c with experimental data collected from Refs. [14,[16][17][18][19][20][21] was performed in Fig. 11.…”

Influence of flow constraints on the properties of the critical endpoint of symmetric nuclear matter

“…The determined range of K 0 and T c values allows us to reveal the mutual consistency of experimental results. Thus, the recent experimental estimates of the nuclear matter critical temperature belong to the following range 15.5 MeV T c 21 Me [2,[30][31][32]. From Fig.…”

“In-System” Fission-Events: An Insight into Puzzles of Exoplanets and Stars?

“…However, it explodes due to Coulomb repulsion and is detected as multifragmentation». [73] (Here, IMF stands for "intermediate mass fragments".) Obviously, before entering the unstable (T, ρ)-region, the nucleus continues to remain structurally cohesive despite being excited ("hot").…”

“…[7]. [73]: Experimental data and analysis of fragmentation in p(8.1GeV) + Au collisions, and proposed spinodal region for the nuclear system. The arrow line shows the path of the system from the starting point at T = 0 and ρ 0 to the multi-scission point at ρ f .…”