The European physical journal. C, Particles andâ€¦

2017

We present an in-depth study of masses and decays of excited scalar and pseudoscalar [Formula: see text] states in the Extended Linear Sigma Model (eLSM). The model also contains ground-state scalar,â€¦ (More)

We discuss our results on scalar glueball decay in the top-do wn holographic Witten-SakaiSugimoto model for low-energy QCD and compare with availabl e experimental data, which appear to disfavor theâ€¦ (More)

We calculate pion-pion scattering lengths and sigma, rho an d a1 decay widths from a gauged linear sigma model with two flavours and its globally i nvariant generalisation.

The structure of the scalar mesons has been a subject of debat e for many decades. In this work we look for Ì„ qq states among the physical resonances using an extended Line ar Sigma Model thatâ€¦ (More)

The so-called extended linear sigma model is a chiral model with (pseudo)scalar and (axial)vector mesons. It is based on the requirements of (global) chiral symmetry and dilatation invariance. Theâ€¦ (More)

We calculate low-energy meson decay processes and pion-pion scattering lengths in a two-flavour linear sigma model with global chiral symmetry, exploring the scenario in which the scalar mesons f 0â€¦ (More)

We address the question whether it is possible to interpret the low-lying scalar mesons f 0 (600) and a 0 (980) as Â¯ qq states within a U(3) Ã— U(3) Linear Sigma Model containing vector andâ€¦ (More)