Add to ORKGWe explore the meaning of single channel unitarity by analytically continuing the unitarity condition, $SS^+=1$, for partial wave $\pi\pi$ scatterings to the entire complex $s$ plane. The pole positions of the $\sigma$ resonance and the $f_0(980)$ resonance are estimated based on the theoretical relations we obtained
We review results of an analysis of pipi interactions in S, P and D waves for two-pion effective mas...
We derive a set of sum rules for threshold parameters of pion-pion scattering whose dispersion integ...
In this paper we propose a dispersive method to describe two-body scattering with unitarity imposed....
Systematic and careful studies are made on the properties of the IJ=00 $\pi\pi$ and $K\bar K$ couple...
A new dispersion relation for the partial wave pipi scattering S matrix is set up. Using the dispers...
We discuss the Pad\'e approximation to the $\pi\pi$ scattering amplitudes in 1--loop chiral perturba...
We impose unitarity constraints on the S-wave isoscalar pion-pion amplitudes extracted from the anal...
Positivity constraints are derived on pion-nucleon scattering amplitudes and their even-order deriva...
It is demonstrated that for the isospin $I=1/2$ $\pi$N scattering amplitude, $T^{I=1/2}(s,t)$, $s={(...
I describe the current status of the theory of pi pi scattering, reviewing in particular recent work...
We discuss unitarity constraints on the dynamics of a system of three interacting particles. We show...
We discuss unitarity constraints on the dynamics of a system of three interacting particles. We show...
We discuss unitarity constraints on the dynamics of a system of three interacting particles. We show...
We study I=0 d wave pi pi scattering phase shift using a proper unitarization approach. It is verifi...
We review our recent analysis of ππ scattering data in terms of Roy equations and Forward Dispersion...
We review results of an analysis of pipi interactions in S, P and D waves for two-pion effective mas...
We derive a set of sum rules for threshold parameters of pion-pion scattering whose dispersion integ...
In this paper we propose a dispersive method to describe two-body scattering with unitarity imposed....
Systematic and careful studies are made on the properties of the IJ=00 $\pi\pi$ and $K\bar K$ couple...
A new dispersion relation for the partial wave pipi scattering S matrix is set up. Using the dispers...
We discuss the Pad\'e approximation to the $\pi\pi$ scattering amplitudes in 1--loop chiral perturba...
We impose unitarity constraints on the S-wave isoscalar pion-pion amplitudes extracted from the anal...
Positivity constraints are derived on pion-nucleon scattering amplitudes and their even-order deriva...
It is demonstrated that for the isospin $I=1/2$ $\pi$N scattering amplitude, $T^{I=1/2}(s,t)$, $s={(...
I describe the current status of the theory of pi pi scattering, reviewing in particular recent work...
We discuss unitarity constraints on the dynamics of a system of three interacting particles. We show...
We discuss unitarity constraints on the dynamics of a system of three interacting particles. We show...
We discuss unitarity constraints on the dynamics of a system of three interacting particles. We show...
We study I=0 d wave pi pi scattering phase shift using a proper unitarization approach. It is verifi...
We review our recent analysis of ππ scattering data in terms of Roy equations and Forward Dispersion...
We review results of an analysis of pipi interactions in S, P and D waves for two-pion effective mas...
We derive a set of sum rules for threshold parameters of pion-pion scattering whose dispersion integ...
In this paper we propose a dispersive method to describe two-body scattering with unitarity imposed....