Low-energy pion-nucleon scattering

Banerjee, M. K. ; Cammarata, J. B. (1977) Low-energy pion-nucleon scattering Physical Review D, 16 (5). pp. 1334-1338. ISSN 0556-2821

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Official URL: http://prd.aps.org/abstract/PRD/v16/i5/p1334_1

Related URL: http://dx.doi.org/10.1103/PhysRevD.16.1334


Using the divergence of the axial-vector current as the pion interpolating field and a soft-pion limit we derive a once-subtracted Low equation for the off-mass-shell πN amplitude. The σ commutator term and the once-subtracted z graphs are the main isoscalar and isovector driving terms. The calculated S-wave phase shifts are in good agreement with the experimental data when we use |gπ(4M2)|=11.69 and 25.5 MeV for the σ commutator term.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:2263
Deposited On:07 Oct 2010 11:48
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