Distribution of the largest fragment in the Lattice Gas Model
  The distribution of the largest fragment is studied in different regions of the Lattice Gas model phase diagram. We show that first and second order transitions can be clearly distinguished in the grancanonical ensemble, while signals typical of a continuous transition are seen inside the coexistence region if a mass conservation constraint is applied. Some possible implications of these findings for heavy ion multifragmentation experiments are discussed. 
Francesca Gulminelli (LPCC), Philippe Dr Chomaz (GANIL)