Add to ORKGThe pole position of the sigma meson is determined using the recently proposed new unitarization method combined with the two-loop SU(2) x SU(2) chiral perturbation theory results. The scattering length parameters and the effective range parameters predicted by our method are in good agreement with experimental results. It is found that M-sigma = 542 +/- 26 +/- 39 Mev, Gammasigma = 546 +/- 122 +/- 25 MeV.Physics, MultidisciplinarySCI(E)中国科技核心期刊(ISTIC)中国科学引文数据库(CSCD)0ARTICLE2268-2744
By applying analyticity and single channel unitarity we derive a new formula which is very useful to...
It is shown from a very general model and an analysis of data on the lightest 0++ meson nonet that t...
By applying analyticity and single-channel unitarity we derive a new formula which is useful to anal...
A new unitarization approach is discussed and applied to study the elastic piK scattering process. T...
The chiral limit of the rho and sigma masses and widths is discussed. We work within the inverse amp...
A new unitarization approach is discussed and applied to study the elastic $\pi K$ scattering proces...
Current theoretical studies on the sigma and kappa resonances are reviewed. It is emphasized that al...
We present a brief account of the developments in the description of light meson resonances using un...
The meson meson interaction in the scalar isoscalar channel at finite baryonic density is studied in...
We propose a new method that fixes the coupling to two photons of the recently found lightest QCD re...
We propose a new method that fixes the coupling to two photons of the recently found lightest QCD re...
The K{sup -}p{yields}{pi}{sup 0}{pi}{sup 0}{sigma}{sup 0} reaction is studied within a chiral unitar...
The K{sup -}p{yields}{pi}{sup 0}{pi}{sup 0}{sigma}{sup 0} reaction is studied within a chiral unitar...
Abstract. We calculate the physical mass and the width of the sigma meson by con-sidering that it co...
Studies on the dynamical properties of the sigma meson are reviewed and discussed. The important rol...
By applying analyticity and single channel unitarity we derive a new formula which is very useful to...
It is shown from a very general model and an analysis of data on the lightest 0++ meson nonet that t...
By applying analyticity and single-channel unitarity we derive a new formula which is useful to anal...
A new unitarization approach is discussed and applied to study the elastic piK scattering process. T...
The chiral limit of the rho and sigma masses and widths is discussed. We work within the inverse amp...
A new unitarization approach is discussed and applied to study the elastic $\pi K$ scattering proces...
Current theoretical studies on the sigma and kappa resonances are reviewed. It is emphasized that al...
We present a brief account of the developments in the description of light meson resonances using un...
The meson meson interaction in the scalar isoscalar channel at finite baryonic density is studied in...
We propose a new method that fixes the coupling to two photons of the recently found lightest QCD re...
We propose a new method that fixes the coupling to two photons of the recently found lightest QCD re...
The K{sup -}p{yields}{pi}{sup 0}{pi}{sup 0}{sigma}{sup 0} reaction is studied within a chiral unitar...
The K{sup -}p{yields}{pi}{sup 0}{pi}{sup 0}{sigma}{sup 0} reaction is studied within a chiral unitar...
Abstract. We calculate the physical mass and the width of the sigma meson by con-sidering that it co...
Studies on the dynamical properties of the sigma meson are reviewed and discussed. The important rol...
By applying analyticity and single channel unitarity we derive a new formula which is very useful to...
It is shown from a very general model and an analysis of data on the lightest 0++ meson nonet that t...
By applying analyticity and single-channel unitarity we derive a new formula which is useful to anal...