Collider experiment SND and Precision Physics with hadronic e+e- cross sections

A. G. Kharlamov, M. N. Achasov, V. M. Aulchenko, A. Yu Barnyakov, K. I. Beloborodov, A. V. Berdyugin, D. E. Berkaev, A. G. Bogdanchikov, A. A. Botov, V. P. Druzhinin, V. B. Golubev, L. V. Kardapoltsev, A. S. Kasaev, A. N. Kirpotin, I. A. Koop, L. A. Korneev, A. A. Korol, S. V. Koshuba, D. P. Kovrizhin, A. S. KupichR. A. Litvinov, K. A. Martin, N. A. Melnikova, N. Yu Muchnoi, A. E. Obrazovsky, E. V. Pakhtusova, K. V. Pugachev, Yu A. Rogovsky, E. Rogozina, S. I. Serednyakov, A. I. Senchenko, D. A. Shtol, D. B. Shwartz, Z. K. Silagadze, I. K. Surin, Yu V. Usov, A. V. Vasiljev, V. N. Zhabin, T. V. Dimova

Research output: Contribution to journalConference articlepeer-review

Abstract

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.

Original languageEnglish
Article number012016
JournalJournal of Physics: Conference Series
Volume1138
Issue number1
DOIs
Publication statusPublished - 21 Dec 2018
Event10th International Conference on Precision Physics of Simple Atomic Systems, PSAS 2018 - Vienna, Austria
Duration: 14 May 201818 May 2018

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