A. Ruangma

The liquid to vapor phase transition in excited nuclei

The thermal component of the 8 GeV/c pi+ Au data of the ISiS Collaboration is shown to follow the scaling predicted by Fishers model when Coulomb energy is taken into account. Critical exponents tau and sigma, the critical point (p(c),rho(c),T(c)), surface energy coefficient c(0), enthalpy of evaporation DeltaH, and critical compressibility factor C(F)(c) are determined. For the first time, the experimental phase diagrams, (p,T) and (T,rho), describing the liquid vapor coexistence of finite neutral nuclear matter have been constructed.

Signals for a transition from surface to bulk emission in thermal multifragmentation.

Excitation-energy-gated two-fragment correlation functions have been studied between E(*)/A = (2-9)A MeV for equilibriumlike sources formed in 8-10 GeV/c pi(-) and p+197Au reactions. Comparison with an N-body Coulomb-trajectory code shows an order of magnitude decrease in the fragment emission time in the interval E(*)/A = (2-5)A MeV, followed by a nearly constant breakup time at higher excitation energy. The decrease in emission time is strongly correlated with the onset of multifragmentation and thermally induced radial expansion, consistent with a transition from surface-dominated to bulk emission expected for spinodal decomposition.

Critical behavior in light nuclear systems: Experimental aspects

An extensive experimental survey of the features of the disassembly of a small quasi-projectile system with

Reaction dynamics and multifragmentation in Fermi energy heavy ion reactions

A \sim

Thermal excitation of heavy nuclei with 5–15 GeV/c antiproton, proton and pion beams

36, produced in the reactions of 47 MeV/nucleon

Effect of nucleon exchange on projectile multifragmentation in the reactions of {sup 28}Si+{sup 112}Sn and {sup 124}Sn at 30 and 50 MeV/nucleon

^{40}

Isospin dependence of isobaric ratio and its relation to temperature

Ar +

Isospin dependence of isobaric ratio Y(H-3) / Y(He-3) and its possible statistical interpretation

^{27}

Inhomogeneous isospin distribution in the reactions of {sup 28}Si+{sup 112}Sn and {sup 124}Sn at 30 and 50 MeV/nucleon

Al,

Breakup time scale studied in the 8 GeV/c pi- + 197Au reaction

^{48}