Extended Limits on Neutral Strongly Interacting Massive Particles and Nuclearites from NaI(Tl) Scintillators

Abstract

Neutral strongly interacting massive particles (SIMPs) were searched for at the Gran Sasso National Laboratory by using two ``planes'' of detectors in the $\ensuremath{\simeq}100\mathrm{kg}$ highly radiopure NaI(Tl) DAMA setup. SIMP exclusion plots and model-independent limits on neutral nuclearites have been significantly improved.