Charged- and neutral-pion production in theS-matrix approach | Zendy

V. Malafaia | Zendy; M. T. Peña | Zendy; Ch. Elster | Zendy; J. Adam | Zendy

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Charged- and neutral-pion production in theS-matrix approach

Author(s) -

V. Malafaia,

M. T. Peña,

Ch. Elster,

J. Adam

Publication year - 2006

Publication title -

physical review c

Language(s) - English

Resource type - Journals

eISSN - 1089-490X

pISSN - 0556-2813

DOI - 10.1103/physrevc.74.042201

Subject(s) - pion , isoscalar , physics , nucleon , production (economics) , particle physics , meson , isobar , scattering , nuclear physics , matrix (chemical analysis) , quantum mechanics , chemistry , economics , macroeconomics , chromatography

The S-matrix approach is used to calculate charged as well as neutral pionproduction reactions from NN scattering, with the same set of underlyingprocesses and interactions. The chiral perturbation theory piN scatteringamplitude is used. For the nucleon-nucleon distortions a newly developedrealistic potential within the Bonn family of potentials, valid well above thepion production threshold, is considered. In the pi+ production case, the NNpotential, the piN relative p-waves and the treatment of the exchanged pionenergy build up the observed cross-section strength.Comment: 8 pages, 5 figure

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