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We introduce a new prescription for the evolution of globular clusters (GCs)during the initial embedded gas phase into a Monte Carlo method. With asimplified version of the Monte Carlo MOCCA code embedded in the AMUSEframework, we study the survival of GCs after the removal of primordial gas. Wefirst test our code and show that our results for the evolution of mass andLagrangian radii are in good agreement with those obtained with N-bodysimulations. The Monte Carlo code enables a more rapid exploration of theevolution of systems with a larger number of stars than N-body simulations. Wehave carried out a new survey of simulations to explore the evolution ofglobular clusters with up to $N = 5$ stars for a range of different starformation efficiencies and half-mass radii. Our study shows the range ofinitial conditions leading to the clusters' dissolution and those for which theclusters can survive this early evolutionary phase.

A Monte Carlo study of early gas expulsion and evolution of star clusters: new simulations with the MOCCA code in the AMUSE framework