Add to ORKGWe demonstrate how a chiral soft pion theorem (SPT) shields the scalar meson ground state isoscalar $\sigma(600-700)$ and isospinor $\kappa(800-900)$ from detection in $a_{1}\to\pi(\pi\pi)_{\mathrm{swave}}$, K^{-}\pi^{+}n$ processes. While pseudoscalar meson PVV transitions are known to be determined by (only) quark loop diagrams, the above SPT also constrains scalar meson SVV transitions to be governed (only) by meson loop diagrams. We apply this latter SVV theorem to $a_{0}\to\gamma\gamma$ and $f_{0}\to\gamma\gamma$ decays
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
The scalar contributions to the radiative decays of light vector mesons into a pair of neutral pseud...
The following topics are considered. 1) Confinement, chiral dynamics, and light scalar mesons. 2) Ch...
The $\pi\pi$ interaction in the scalar isoscalar channel is studied as a function of the baryonic de...
The axial-vector Ward-Takahashi identity places constraints on particular properties of every pseudo...
In the chiral unitary approach, we have studied the single Cabibbo-suppressed decays $$\Lambda _c\ri...
We study the radiative $phi$ decay into $pi^0 pi^0 gamma$ and $pi^0 eta gamma $ taking into account ...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
Complex poles of the unitarized pi-pi scattering amplitude in nuclear matter are studied. Partial re...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
We study the long-distance dominated K_L -> pi^+ pi^- gamma decay at O(p^6) in Chiral Perturbation T...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
The scalar contributions to the radiative decays of light vector mesons into a pair of neutral pseud...
The following topics are considered. 1) Confinement, chiral dynamics, and light scalar mesons. 2) Ch...
The $\pi\pi$ interaction in the scalar isoscalar channel is studied as a function of the baryonic de...
The axial-vector Ward-Takahashi identity places constraints on particular properties of every pseudo...
In the chiral unitary approach, we have studied the single Cabibbo-suppressed decays $$\Lambda _c\ri...
We study the radiative $phi$ decay into $pi^0 pi^0 gamma$ and $pi^0 eta gamma $ taking into account ...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
Complex poles of the unitarized pi-pi scattering amplitude in nuclear matter are studied. Partial re...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
We study the long-distance dominated K_L -> pi^+ pi^- gamma decay at O(p^6) in Chiral Perturbation T...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...
The COMPASS collaboration at CERN has investigated the $\pi^-\gamma \to \pi^-\pi^-\pi^+$ reaction at...