Abstract
An explicit form of the source of the pseudoscalar meson field, consistent with the hypothesis of partially conserved axial-vector current, is proposed. By means of it the pseudoscalar-meson---baryon $S$-wave scattering lengths are calculated. A close connection between the equal-time commutators of currents and the subtraction constants in dispersion relations of amplitudes is shown to exist.
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Schedule a callMore From: Physical review. A, Atomic, molecular, and optical physics
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