Low-mass scalar production in γγ scattering

2008/11/10 by G. Mennessier
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/j.nuclphysbps.2008.12.064

3 pages, 2 figures, Talk given at QCD 08 (Montpellier 7-12th july 2008)

arxiv created 2008/11/10 · openalex publication_date 2009/01/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We estimate the I=0 scalar meson σ/f₀(600) γγ widths, from ππ and γγ scattering data below 700 MeV using an improved analytic K-matrix model.

Citations

• Amplitude analysis of high statistics results on γγ→π+π- and the two photon width of isoscalar states
• Pion-pion scattering amplitude. III. Improving the analysis with forward dispersion relations and Roy equations
• On the precision of the theoretical predictions forππscattering