110 citations · 485 across the 58 of their papers we have counts for
9 papers · 1 filter
Comment on "Two-photon decay of the sigma meson"
Eef van Beveren, Frieder Kleefeld, George Rupp +1
We comment on a recent paper by Giacosa, Gutsche, and Lyobovitskij, in which it is argued that a quarkonium interpretation of the meson should give rise to a much smaller two-p…
Radiative decays with a0(980) and f0(980) from ChPT at order p^4
S. Ivashyn, A. Korchin
A consistent description of the pi0 pi0 invariant mass distribution in the phi(1020) -> f0(980) gamma -> pi0 pi0 gamma decay and the pi0 eta in phi(1020) -> a0(980) gamma -> pi0 et…
On the Dynamical Generation of Quark-Level-Linear-Sigma-Model-like Theories beyond one Loop
F. Kleefeld
A self-consistent strategy to complete the dynamical generation of Quark-Level-Linear-Sigma-Model-like Lagrangean theories beyond one loop as proposed in more detail in our manuscr…
$D^+ \to K^- \p^+ \p^+ $: the low-energy sector
D. R. Boito, P. C. Magalhães, M. R. Robilotta +1
An effective chiral lagrangian, which includes scalar resonances, is used to describe the process $D^+ \rar K^- \p^+ \p^+$ at low-energies. Our main result is a…
New formula for a resonant scattering near an inelastic threshold
L. Lesniak
We show that the Flatte formula is not adequate to interpret precision data on a resonance production near an inelastic threshold. A unitary parameterization, satisfying generalize…
Review of Scalar Mesons
D. V. Bugg
The formulae needed to parametrise sigma, kappa, a0(980) and f0(980) are reviewed. For sigma and kappa, the Adler zero due to Chiral Symmetry Breaking plays a crucial role. The f0(…
The Light Scalar Mesons a_0/f_0(980) at COSY-Juelich
M. Buescher
The light scalar mesons a_0/f_0(980) are being investigated at COSY-Juelich by detecting the strong decays into K-K-bar and pi-eta/pi-pi as well as radiative decays into vector mes…
Alpha-Alpha scattering, chiral symmetry and 8Be lifetime
E. Ruiz Arriola
Alpha-alpha scattering is discussed in terms of a chiral two pion exchange potential which turns out to be attractive and singular at the origin, hence demanding renormalization. W…
On how to complete the Dynamical Generation of Quark-Level Linear Sigma Model like Theories beyond one Loop
F. Kleefeld
A self-consistent strategy is proposed to complete in a renormalization scheme independent way the dynamical generation of Quark-Level Linear Sigma Model like Lagrangean theories b…