61 citations · 205 across the 8 of their papers we have counts for
8 papers · 1 filter
The sigma and f_0(980) from K_e4+pi-pi, gamma-gamma scatterings, J/psi, phi to gamma sigma_B and D_s to l nu sigma_B
G. Mennessier, S. Narison, X. -G. Wang
We extract the pole positions, hadronic and gamma-gamma widths of sigma and f_0(980, from pi-pi and gamma-gamma scattering data using an improved analytic K-matrix model. Our resul…
sigma and f_0(980) substructures from gamma-gamma to pi-pi, J/psi, phi radiative and D_s semi-leptonic decays
G. Mennessier, S. Narison, X. -G. Wang
Using an improved "analytic K-matrix model", we reconsider the extraction of the sigma/f_0(600) and f_0(980) gamma-gamma widths from gamma-gamma to pi-pi scatterings data of Crysta…
The sigma and f_0(980) from Ke4 + pi-pi scatterings data
G. Mennessier, S. Narison, X. -G. Wang
We systematically reconsider, within an improved "analytic K-matrix model", the extraction of the sigma = f_0(600) and f_0(980) masses, widths and hadronic couplings using new Ke4…
Gluonium nature of the sigma/f_0(600) from its coupling to KK
R. Kaminski, G. Mennessier, S. Narison
We extract the K+K- couplings of the isoscalar scalar mesons sigma/f_0(600) and f_0(980) from pi pi to pi pi / K K scatterings and found: |g_{sigma K+K-}|/ |g_{sigma pi+pi-}|= 0.8…
Low-mass scalar production in scattering
G. Mennessier
We estimate the I=0 scalar meson widths, from and scattering data below 700 MeV using an improved analytic K-matrix model.
Two-photon width and gluonic component of sigma/f_0(600)
G. Mennessier, S. Narison, W. Ochs
We analyse data on pi pi and gamma gamma scattering below 700 MeV within an improved analytic K-matrix model. This model is based on an effective theory with couplings between reso…