scholarly journals Low-energy expansion for pion-pion scattering and crossing symmetry in dispersion relations

1998 ◽  
Vol 58 (3) ◽  
Author(s):  
B. Ananthanarayan
Keyword(s):  
Dispersion Relations ◽  
Low Energy ◽  
Pion Scattering ◽  
Crossing Symmetry ◽  
Energy Expansion

Pion–pion scattering in a model satisfying crossing symmetry, analyticity, and approximate unitarity

1976 ◽  
Vol 54 (10) ◽  
pp. 1022-1033
Author(s):  
D. H. Boal ◽  
J. W. Moffat
Keyword(s):  
Phase Shift ◽  
Energy Region ◽  
Detailed Comparison ◽  
Phase Shifts ◽  
Low Energy ◽  
Pion Scattering ◽  
Crossing Symmetry ◽  
Mandelstam Analyticity ◽  
Good Agreement

Phase shifts for π–π scattering are obtained from a model satisfying Mandelstam analyticity, exact crossing symmetry, and approximate unitarity in the range 2mπ ≤ s1/2 ≤ 1.3 GeV. The low energy region is dominated by the ρ, ε, and S* poles; the δ00 phase shift is in good agreement with the data obtained by Protopopescu et al. A detailed comparison is made with the available world's data on π–π scattering.

scholarly journals Low-energy expansion of the pion-nucleon Lagrangian

1996 ◽  
Vol 365 (1-4) ◽  
pp. 312-318 ◽  
Author(s):  
G. Ecker ◽  
M. Mojžiš
Keyword(s):  
Low Energy ◽  
Pion Nucleon ◽  
Energy Expansion

Negative Pion Scattering and the Dispersion Relations

1957 ◽  
Vol 108 (5) ◽  
pp. 1352-1353 ◽  
Author(s):  
M. H. Zaidi ◽  
E. L. Lomon
Keyword(s):  
Dispersion Relations ◽  
Pion Scattering ◽  
Negative Pion

Fairly Low-Energy Pion-Pion Scattering. II

1964 ◽  
Vol 133 (5B) ◽  
pp. B1340-B1343 ◽  
Author(s):  
Alvin M. Saperstein ◽  
Jack L. Uretsky
Keyword(s):  
Low Energy ◽  
Pion Scattering
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