The $\Lambda(1405)$ as a Hybrid

Carnegie Mellon University) Ernest M. Henley (Department of Physics; Leonard S. Kisslinger (Department of Physics; University of Washington)

arxiv: 0911.1179 · v4 · pith:45I7JUKEnew · submitted 2009-11-06 · ✦ hep-ph · nucl-th

The Λ(1405) as a Hybrid

Leonard S. Kisslinger (Department of Physics , Carnegie Mellon University) Ernest M. Henley (Department of Physics , University of Washington) This is my paper

classification ✦ hep-ph nucl-th

keywords hybridlambdamassapproximatelybaryonbeendecadesdiscussed

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Using the QCD Sum Rule Method, we estimate the mass of the lowest strange hybrid baryon with $IJ^P=0(1/2)^-$. We find the mass is approximately that of the $\Lambda(1405)$, whose nature has been a puzzle for many decades. Possible tests of this result are discussed.

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The Λ(1405) as a Hybrid

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