The Spherical Neutral Detector (SND) is an experiment for e+e- annihilation study at low energies 0.2-2 GeV. The light quark anti-quark bound states are the main subject of study at these energies. They express themselves as resonances in the e+e- hadronic cross sections. Hadronic cross sections could be recalculated to hadronic vacuum polarization (HVP). The Standard Model predictions today are limited by HVP which is not calculable with modern QCD theory. In this talk we present the review of the hadronic cross sections measurements at SND and new measurements: e+e- → π+π-, π0γ, π+π-π0, ωπ0, K+K-η, η, KsKLπ0, π+π-π0η, ωπ0η e.t.c.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 21 Dec 2018|
|Event||10th International Conference on Precision Physics of Simple Atomic Systems, PSAS 2018 - Vienna, Austria|
Duration: 14 May 2018 → 18 May 2018