X iv : n uc l - th / 9 51 20 19 v 1 1 3 D ec 1 99 5 Second Order Phase Transitions : From Infinite to Finite Systems

ar X iv : n uc l - th / 9 31 20 21 v 1 2 8 D ec 1 99 3 Meson phase space density from interferometry

X iv :n uc lth /9 31 20 21 v1 2 8 D ec 1 99 3 Meson phase space density from interferometry George F. Bertsch Dept. of Physics and Institute for Nuclear Theory, FM-15 University of Washington Seattle, WA 98195 Abstract The interferometric analysis of meson correlations provides a measure of the average phase space density of the mesons in the final state. This quantity is a useful indicator of ...

X iv : n uc l - th / 9 61 20 50 v 1 1 7 D ec 1 99 6 Variational approach to anharmonic collective motion

We derive large-amplitude collective equations of motion from the variational principle for the time-dependent Schrödinger equation. These equations reduce to the well-known diabatic formulas for vibrational frequencies in the small amplitude limit. The finite amplitude expression allows departures from harmonic behavior of giant resonances to be simply estimated. The relative shift of the seco...

ar X iv : n uc l - th / 9 71 20 55 v 1 1 6 D ec 1 99 7 Phaseshift equivalent NN potentials and the deuteron

Different modern phase shift equivalent NN potentials are tested by evaluating the partial wave decomposition of the kinetic and potential energy of the deuteron. Significant differences are found, which are traced back to the matrix elements of the potentials at medium and large momenta. The influence of the localisation of the one-pion-exchange contribution to these potentials is analyzed in ...

X iv : n uc l - th / 9 41 10 19 v 3 2 J an 1 99 5 DOUBLE ∆ PRODUCTION IN THE γd → pnπ + π − REACTION

ar X iv : n uc l - th / 9 90 10 16 v 1 8 J an 1 99 9 Experimental and Theoretical Search for a Phase Transition in Nuclear Fragmentation

Phase transitions of small isolated systems are signaled by the shape of the caloric equation of state e∗(T ), the relationship between the excitation energy per nucleon e∗ and temperature. In this work we compare the experimentally deduced e∗(T ) to the theoretical predictions. The experimentally accessible temperature was extracted from evaporation spectra from incomplete fusion reactions lea...