Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2008-12-19
J.Phys.G36:064048,2009
Physics
Nuclear Physics
Nuclear Experiment
Talk given at International Conference on Strangeness in Quark Matter (SQM 2008), Beijing, China, Oct 6-10, 2008
Scientific paper
10.1088/0954-3899/36/6/064048
Strange quark matter is a postulated state which may be the true ground state of cold hadronic matter. Physicists have been searching for strange quark matter in the last several decades but found no definite evidence of its existence. In our experiment, we used the Yale tandem accelerator as a mass spectrometer to identify possible stable strangelets (small chunks of strange quark matter) in lunar soil. The search covers the mass range from A=42 to A=70 amu for nuclear charges 6, 8, and 9. No strangelets are found at sensitivity levels down to $\sim10^{-17}$. The implied limit on strangelet flux in cosmic rays is the most sensitive to date for the covered mass range.
for the LSSS Collaboration
Han Ke
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