Strangelet Search in AuAu Collisions at 200 GeV

preprint2007arXivOpen access

Abstract

We have searched for strangelets in a triggered sample of 61 million central (top 4%) Au+Au collisions at $\sNN = 200 $GeV near beam rapidities at the STAR detector. We have sensitivity to metastable strangelets with lifetimes of order ≥0.1ns\geq 0.1 ns, in contrast to limits over ten times longer in AGS studies and longer still at the SPS. Upper limits of a few 10^{-6} to 10^{-7} per central Au+Au collision are set for strangelets with mass ∼>30{}^{>}_{\sim}30 GeV/c^{2}.

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