Abstract

We have reanalyzed the π±p scattering data at low energy in the Coulomb-nuclear interference region as measured by the CHAOS group at TRIUMF with the aim to determine the pion–nucleon σ term. The resulting value σ=(44±12) MeV, while in agreement with lattice QCD calculations and compatible with other recent analyses, is significantly lower than that from the GWU–TRIUMF analysis of 2002.

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