ISSN - 09205632, Nuclear Physics B - Proceedings Supplements, 2008, vol. 186, p. 197-202
Results on e+ e- → hadrons cross sections from VEPP-2M and BaBar
In 1992-2000, data on e+ e- annihilation into hadrons were collected in the energy range 0.36 < sqrt(s) < 1.4 GeV with the CMD-2 and SND detectors at the VEPP-2M collider in Novosibirsk. The results of the R (s) measurements in these experiments are presented. The radiative return program at BaBar also allows to study low energy e+ e- annihilation and overview of the results are presented in this paper. © 2009 Elsevier B.V.