The strangeness content of the nucleon
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We evaluate the matrix element of $\bar{q} q$ in hadron states on a lattice. We find substantial mixing of the connected and disconnected contributions so that the lattice result that the disconnected contribution to the nucleon is large does not imply that the $\bar{s} s$ content is large. This has implications for dark matter searches.
contribution to Lattice2001(matrixelement)
contribution to Lattice2001(matrixelement)