Exotic particle searches using the Purdue AMS facility

Two exotic particle searches are being performed using the Accelerator Mass Spectrometer (AMS) at the Purdue Rare Isotope Measurement Laboratory (PRIME Lab). Recent theoretical developments allow for the possibility of small violations of the symmetrization postulate, which may lead in turn to detectable violations of the Pauli exclusion principle. We report the results of a new experimental search for paronic (Pauli-violating) Be, denoted by Be′, in samples where Be′ retention would be highest. Our limits represent an improvement by a factor of approximately 300 over a previous search for Be′. There are also several recent cosmological motivations for strongly interacting massive particles (SIMPs). We present results from our current search for anomalous heavy isotopes of Au in samples of Australian and laboratory gold with a limit on SIMP abundance ratios as low as ${10}^{\text{−12}}.$ This experiment provides significant constraints on the existence of such particles in high Z nuclei.