Semiphenomenological Solutions of Pion-Nucleon Partial-Wave Dispersion Relations

1964 ◽  
Vol 133 (4B) ◽  
pp. B1053-B1073 ◽  
Author(s):  
A. Donnachie ◽  
J. Hamilton
Keyword(s):  
Partial Wave ◽  
Wave Dispersion ◽  
Dispersion Relations ◽  
Pion Nucleon

Partial-Wave Dispersion Relations for Pion-Nucleon Scattering

1960 ◽  
Vol 119 (4) ◽  
pp. 1420-1426 ◽  
Author(s):  
William R. Frazer ◽  
Jose R. Fulco
Keyword(s):  
Partial Wave ◽  
Wave Dispersion ◽  
Dispersion Relations ◽  
Nucleon Scattering ◽  
Pion Nucleon

Approximate Solution to Partial-Wave Dispersion Relations

1965 ◽  
Vol 137 (4B) ◽  
pp. B955-B961 ◽  
Author(s):  
G. Q. Hassoun ◽  
Kyungsik Kang
Keyword(s):  
Approximate Solution ◽  
Partial Wave ◽  
Wave Dispersion ◽  
Dispersion Relations

Solutions of the Pion-Pion Partial Wave Dispersion Relations

1961 ◽  
Vol 7 (10) ◽  
pp. 390-393 ◽  
Author(s):  
James S. Ball ◽  
David Y. Wong
Keyword(s):  
Partial Wave ◽  
Wave Dispersion ◽  
Dispersion Relations

Partial wave dispersion relations for lambda-nucleon scattering

1962 ◽  
Vol 24 (6) ◽  
pp. 980-999
Author(s):  
Alladi Eamakrishnan ◽  
A. P. Balachandran
Keyword(s):  
Partial Wave ◽  
Wave Dispersion ◽  
Dispersion Relations ◽  
Nucleon Scattering

THE PION-NUCLEON SIGMA TERM FROM UPDATED T-CHANNEL INPUT

2005 ◽  
Vol 20 (08n09) ◽  
pp. 1876-1879 ◽  
Author(s):  
M. HADZIMEHMEDOVIC ◽  
H. OSMANOVIC ◽  
J. STAHOV
Keyword(s):  
Partial Wave ◽  
Wave Solution ◽  
Phase Shifts ◽  
Dispersion Relations ◽  
Channel Input ◽  
Sigma Term ◽  
Pion Nucleon ◽  
Error Bars

Dispersion relations along interior hyperbolas and a set of hyperbolas passing through the Cheng-Dashen point are used to calculate the pion-nucleon sigma term. The t-channel input is updated using the recent GWU partial wave solution and ππ phase shifts from calculations based on Roy equations. Obtained values for the sigma term are still within the error bars of the previous Karlsruhe result.

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