Proton-proton correlation functions measured near the Fermi Energy using the FAUST

Proton-proton correlation functions have been predicted to be sensitive to the form of the nuclear equation of state. Previous experiments have searched for evidence of this sensitivity and shown the importance of event selection in correlation function extraction. We have performed a new experiment varying the neutron-proton asymmetry of the system by varying the composition at constant atomic number and by varying the composition at constant mass in collisions around Atot=98 just above the Fermi energy. The FAUST (a Si-CsI array) was used to measure protons (and other light charged particles) produced from 1.6 to 45 degrees. FAUST was upgraded with position sensitive silicon detectors which have <200um resolution within the detector. Proton proton correlation functions have been extracted from the experimental data. These can be compared with correlation functions from a transport model, Boltzmann-Uehling-Uhlenbeck.