Conveners
Session 5b: Proton-proton and e+e- colliders
- Michel Davier (IJCLab)
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Boris Shwartz (Budker Institute of Nuclear Physics, Novosibirsk)30/09/2021, 08:00Tau2021 AbstractsOral contribution
The VEPP-2000 ee collider has been operating at BINP (Novosibirsk) from 2010 in the center-of-mass energy range from 0.3 to 2 GeV. The project luminosity of this machine, exploiting the idea of the round beams, has to amount to 1032cm-2s-1. By now the luminosity up to 51031cm-2s-1 was achieved. Two detectors, CMD-3 and SND, are running at two interaction regions of the VEPP-2000. Each...
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Dr Tatyana Dimova (Novosibirsk State University (RU))30/09/2021, 08:25Tau2021 AbstractsOral contribution
Total amount of about 320 pb^{-1} of integrated luminocity has been collected with SND detector at VEPP-2000 collider. Here we present recent results on e+e- annihilation to hadrons below 2 GeV based on part of the data. In particular, we discuss measurements of the e^+e^-\to pi^+\pi^- and e^+e^- \to n\bar{n} cross sections, and study of the radiative processes e^+e^- \to \eta\gamma, e^+e^-...
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Peter Lukin30/09/2021, 08:50Tau2021 AbstractsOral contribution
The measurement of exclusive e+e− to hadrons processes is a significant part of the physics program of BABAR experiment, aimed to improve the calculation of the hadronic contribution to the muon g−2 and to study the intermediate dynamics of the processes. We present the most recent studies performed on the full data set of about 470 fb^−1 collected at the PEP-II e+e− collider at a...
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Korneliy Todyshev (BINP)30/09/2021, 09:15Tau2021 AbstractsOral contribution
We present the results on the inclusive cross section of e+e- single
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photon annihilation into hadrons in the energy range from 1.84 to 3.72 GeV obtained at the KEDR experiment, which include values of the R measurement in 22 points and of leptonic widths of J/psi and psi(2S) mesons. The results are important or determination of the muon anomalous magnetic moment, the fine structure constant...