2004/11/10 by S. Rodríguez, Simon Rodriguez, M. Napsuciale +1
Physics and Astronomy · #Context (archaeology) #High-Energy Particle Collisions Research #Meson #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.71.074008
published as Phys.Rev.D71:074008,2005 · 6 pages, 1 figure
arxiv created 2004/11/10 · openalex publication_date 2005/04/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study the two photon decay of neutral scalars below 1.5 GeV in the context of a recently proposed chiral model for qq and qqqq states. We find good agreement with experimental results for the a0(980)\ensuremath→\ensuremathγ\ensuremathγ decay. Our calculations for f0(980)\ensuremath→\ensuremathγ\ensuremathγ shows that further work is necessary in order to understand the structure of this meson. The model predicts \ensuremathΓ(a0(1450)\ensuremath→\ensuremathγ\ensuremathγ)=0.16\ifmmode±\else\textpm\fi0.10 KeV, \ensuremathΓ(\ensuremathσ\ensuremath→\ensuremathγ\ensuremathγ)=(0--1.13) KeV, \ensuremathΓ(f0(1370)\ensuremath→\ensuremathγ\ensuremathγ)=(0--0.22) KeV, \ensuremathΓ(f0(1500)\ensuremath→\ensuremathγ\ensuremathγ)=(0--1.51) KeV.