Precise measurements of the hadronic cross sections with the CMD-3 and SND detectors at the VEPP-2000e+e−collider

Ачасов, М. Н.; Akhmetshin, R.R.; Anisenkov, A. V.; Aulchenko, V.; Banzarov, V.Sh.; Барков, Л.М.; Barnyakov, A.; Bashtovoy, N.S.; Beloborodov, K.; Berdyugin, A. V.; Berkaev, D. E.; Богданчиков, А. Г.; Bondar, A.; Botov, A. A.; Bragin, A.V.; Dimova, A.V.; Eidelman, S.; Epifanov, D.; Epshteyn, L.B.; Erofeev, A.L.; Fedotovich, G. V.; Gayazov, S.E.; Golubev, V. B.; Grebenuk, A.A.; Grevtsov, K.; Grigoriev, D.N.; Gromov, E. M.; Ignatov, F.V.; Kardapoltsev, L.; Karpov, S. V.; Казанин, В. Ф.; Kharlamov, A. G.; Khazin, B.I.; Kirpotin, A. N.; Koop, I. A.; Korol, A. A.; Koshuba, S. V.; Kovalenko, O. A.; Kovrizhin, D. P.; Kozyrev, Aleksei; Kozyrev, E. A.; Krokovny, P.; Kupich, A.; Kuzmenko, A.E.; Kuzmin, A.; Logashenko, I.B.; Lukin, P.; Лысенко, А. П.; Martin, K. A.; Mikhailov, K.; Obrazovsky, A. E.; Okhapkin, V.S.; Otboev, A.V.; Пахтусова, Е. В.; Perevedentsev, E. A.; Pestov, Y.; Попов, А. С.; Popov, Yu. S.; Razuvaev, G.P.; Rogovsky, Yu. A.; Romanov, Alexander; Рубан, А.А.; Ryskulov, N.M.; Ryzhenenkov, A.E.; Serednyakov, S. I.; Shatunov, P. Yu.; Shatunov, Yu. M.; Shebalin, V.; Shemyakin, D.N.; Shtol, D.; Shwartz, B.; Shwartz, D. B.; Sibidanov, A.; Силагадзе, З. К.; Solodov, E. P.; Surin, I. K.; Talyshev, Alexei; Титов, В.М.; Vasiljev, A. V.; Воробйов, А.І.; Yudin, Yu.V.; Zemlyansky, I. M.; Zharinov, Yu. M.

doi:10.1051/epjconf/20147100121

Cited by 5 publications

(1 citation statement)

References 19 publications

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“…8) and φ resonances as measured by the CMD-2 [38,52] and SND [42] experiments. Above the φ, results are available from BABAR [44] and SND [156], which agree with each other as seen in Fig. 9, while both disagree strongly with the earlier results from DM2 [157].…”

Section: • the Multi-hadronic Channelssupporting

confidence: 80%

The anomalous magnetic moment of the muon in the Standard Model

Hoferichter

2022

Preprint

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Precision measurements of low-energy observables can allow one to derive powerful constraints on physics beyond the Standard Model of particle physics—if the same quantity can be predicted at the same level of precision as experiment. The anomalous magnetic moment of the muon is a prominent example in which the sensitivity to potential contributions beyond the Standard Model crucially depends on the theoretical prediction. In the seminar I will give an overview of the first publication of the Muon g-2 Theory Initiative, Phys. Rept. 887 (2020) 1, which provided a comprehensive review of all sectors contributing to the Standard Model prediction, with focus on the hadronic corrections.

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Section: • the Multi-hadronic Channelssupporting

confidence: 80%

The anomalous magnetic moment of the muon in the Standard Model

Hoferichter

2022

Preprint

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The electromagnetic form factors of the proton in the timelike region

2014

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The reactionspp → e + e − and e + e − →pp are analyzed in the near-threshold region. Specific emphasis is put on the role played by the interaction in the initial-or final antinucleon-nucleon (NN) state which is taken into account rigorously. For that purpose a recently publishedNN potential derived within chiral effective field theory and fitted to results of a new partial-wave analysis ofpp scattering data is employed. Our results provide strong support for the conjecture that the pronounced energy dependence of the e + e − ↔pp cross section, seen in pertinent experiments, is primarily due to thepp interaction. Predictions for the proton electromagnetic form factors G E and G M in the timelike region, close to theNN threshold, and for spin-dependent observables are presented. The steep rise of the effective form factor for energies close to thepp threshold is explained solely in terms of thepp interaction. The corresponding experimental information is quantitatively described by our calculation.

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