Sigma-term physics

J. Gasser; M. E. Sainio

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arXiv · hep-ph/0002283

Sigma-term physics

J. Gasser·M. E. Sainio

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Abstract

We consider sigma-terms in $ππ$, $πN$ and $K N$ scattering. While the state of the art in $ππ$ is in principle crystal clear, the kaon-nucleon case is largely unexplored. The pion-nucleon system is in-between. We propose a list of topics to be investigated in kaon-nucleon scattering, in order to make optimal use of the precision data expected from DEAR.

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J. Gasser, M. E. Sainio. 2000-02-27. Sigma-term physics. https://arxiv.org/abs/hep-ph/0002283

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