Poles of the Zagreb analysis partial-wave T matrices

The Zagreb analysis partial-wave T matrices included in the Review of Particle Physics[by the Particle Data Group (PDG)] contain Breit-Wigner parameters only. As the advantages of pole over Breit-Wigner parameters in quantifying scattering matrix resonant states are becoming indisputable, we supplem...

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Bibliographic Details
Published in:Physical review. C, Nuclear physics Nuclear physics, 2010-09, Vol.82 (3), Article 038203
Main Authors: Batinić, M., Ceci, S., Švarc, A., Zauner, B.
Format: Article
Language:English
Subjects:
BREIT-WIGNER FORMULA
MATHEMATICAL SOLUTIONS
MATRICES
PARTIAL WAVES
PARTICLES
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
S MATRIX
SCATTERING
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Summary:The Zagreb analysis partial-wave T matrices included in the Review of Particle Physics[by the Particle Data Group (PDG)] contain Breit-Wigner parameters only. As the advantages of pole over Breit-Wigner parameters in quantifying scattering matrix resonant states are becoming indisputable, we supplement the original solution with the pole parameters. Because of an already reported numeric error in the S{sub 11} analytic continuation [Batinicet al., Phys. Rev. C 57, 1004(E) (1997); arXiv:nucl-th/9703023], we declare the old BATINIC 95 solution, presently included by the PDG, invalid. Instead, we offer two new solutions: (A) corrected BATINIC 95 and (B) a new solution with an improved S{sub 11} {pi}N elastic input. We endorse solution (B).
ISSN:0556-2813
1089-490X
DOI:10.1103/PhysRevC.82.038203