Fingerprints of finite size effects in nuclear multifragmentation

A microcanonical multi fragment at ion model is used to investigate different aspects related to a possible liquid-gas phase transition taking place in excited nuclei. It is shown that due to the finite size of the system properties generally specific to the critical point manifest is a wide region of the phase diagram. Is is shown that the scaling of isotopic yields is affected by finite size effects. Using a simplified one component Lennard-Jones fluid phase diagrams of different size systems are calculated. The result is that the critical point of the system is size dependent.