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A New Analysis of the pi+pi- and pi0pi0 Data
R. Kaminski, L. Lesniak, K. Rybicki
A joint analysis of the pi+pi- and pi0pi0 S-wave amplitudes including results of three experiments has been performed. Using our theoretical model of the pion-pion production in wh…
A joint analysis of the S-wave in the pi+pi- and pi0pi0 data
R. Kaminski, L. Lesniak, K. Rybicki
We use our former results on pi+pi- S-wave obtained in a nearly assumption-free way from the 17.2 GeV/c data to predict the pi0pi0 S--wave. The predictions are compared with the re…
Comment on `Analysis of O(p^2) Corrections to <2pi|Q_{7,8}|K>'
Vincenzo Cirigliano, Eugene Golowich
We extend in several respects our earlier work on O(p^2) corrections to matrix elements of the electroweak penguin operator O_{ewp}. First, to facilitate comparison with certain la…
Theoretical constraints on interaction amplitudes of light mesons
R. Kaminski, L. Lesniak, K. Rybicki
We impose unitarity constraints on the S-wave isoscalar pion-pion amplitudes extracted from the analysis of the pi- p ---> pi+ pi- n data which have been measured by the CERN-Craco…
Further study of the pi-pi S-wave isoscalar amplitude below the K - Kbar threshold
R. Kaminski, L. Lesniak, K. Rybicki
We continue the analysis of S-wave production amplitudes for the reaction pi- p -> pi+ pi- n involving the data obtained by the CERN--Cracow-Munich collaboration on a transversely…
New Solutions for Scalar-Isoscalar pi-pi Phase Shifts
R. Kaminski, L. Lesniak, K. Rybicki
The scalar-isoscalar pi-pi phase shifts are calculated in the pi-pi energy range from 600 MeV to 1600 MeV. We use results of the CERN-Cracow-Munich collaboration for the reaction p…