Energy calibration of the NaI(Tl) calorimeter of the SND detector using $e^+e^- \to e^+e^-$ events
M. N. Achasov,D.A. Bukin,T.V.Dimova,V. P. Druzhinin,V. B. Golubev,Vladimir Ivanchenko,A.A.Korol +6 more
TLDR
In this paper, the three layer NaI(Tl) spherical calorimeter of the SND detector using electron-posite scattering events is described, achieving an energy resolution of 5 % (FWHM/2.36) for 500 MeV photons.Abstract:
Calibration of the three layer NaI(Tl) spherical calorimeter of the SND detector using electron -- positron scattering events is described. Energy resolution of $5 % (FWHM/2.36)$ for 500 MeV photons was achieved.read more
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Journal ArticleDOI
Spherical neutral detector for VEPP-2M collider
M. N. Achasov,V.M. Aulchenko,S.E. Baru,Konstantin Beloborodov,A. V. Berdyugin,Alexander Bogdanchikov,A. V. Bozhenok,A. D. Bukin,D.A. Bukin,S.V. Burdin,T.V. Dimova,S. I. Dolinsky,A.A. Drozdetsky,V. P. Druzhinin,M. S. Dubrovin,I.A. Gaponenko,V. B. Golubev,Vladimir Ivanchenko,Aleksandr Korol,S.V. Koshuba,G.A. Kukartsev,E.V. Pakhtusova,V.M.Popov,A. A. Salnikov,S. I. Serednyakov,V. V. Shary,V.A. Sidorov,Z. K. Silagadze,Yu. V. Usov,A. V. Vasiljev,Yu. S. Velikzhanin,A.C Zakharov +31 more
TL;DR: The spherical neutral detector (SND) as mentioned in this paper operates at VEPP-2M collider in Novosibirsk studying e + e − annihilation in the energy range up to 1.4
Journal ArticleDOI
First observation of φ(1020)→π0π0γ decay
M. N. Achasov,V.M. Aulchenko,A. V. Berdyugin,A. V. Bozhenok,A. D. Bukin,D.A. Bukin,S.V. Burdin,T.V. Dimova,S. I. Dolinsky,V. P. Druzhinin,M. S. Dubrovin,I.A. Gaponenko,V. B. Golubev,Vladimir Ivanchenko,I. A. Koop,Aleksandr Korol,S.V. Koshuba,E.V. Pakhtusova,E.A. Perevedentsev,A. A. Salnikov,S. I. Serednyakov,V. V. Shary,Yu. M. Shatunov,V.A. Sidorov,Z. K. Silagadze,Alexander Skrinsky,Yu. V. Usov,Yu. S. Velikzhanin +27 more
TL;DR: In this paper, it was shown that f 0 (980) γ mechanism dominates in the decay of φ (1020)→ π 0 π γ decay at VEPP-2M e + e − collider.
Journal ArticleDOI
Investigation of the e+e−→ωπ0→π0π0γ reaction in the energy domain near the φ-meson
M. N. Achasov,V. M. Aulchenko,A. V. Berdyugin,A. V. Bozhenok,D.A. Bukin,S.V. Burdin,T.V. Dimova,V. P. Druzhinin,M. S. Dubrovin,I.A. Gaponenko,V. B. Golubev,V. N. Ivanchenko,Ivan Koop,A. A. Korol,S.V. Koshuba,E. V. Pakhtusova,A. A. Salnikov,V. V. Shary,S. I. Serednyakov,Yu. M. Shatunov,V.A. Sidorov,Z. K. Silagadze,Alexander Valishev +22 more
TL;DR: In this paper, the e + e − → ωπ 0 → π 0 π γ 0 γ γ decay process was investigated in the SND experiment at the VEPP-2M collider, where a narrow energy interval near the φ -meson was scanned.
Journal ArticleDOI
Investigation of the e(+)e(-)->omega pi(0)->pi(0)pi(0)gamma reaction in the energy domain near the phi-meson
TL;DR: In this paper, a narrow energy interval near the $\phi$-meson was scanned and the observed cross-section revealed, at the level of three standard deviation, the interference effect caused by the $e^+e^- \to \omega \pi^0 \to π^0 π-gamma$ process.
Journal ArticleDOI
Time resolution of the SND electromagnetic calorimeter
M. N. Achasov,M. N. Achasov,V.M. Aulchenko,V.M. Aulchenko,Alexander Bogdanchikov,V. P. Druzhinin,V. P. Druzhinin,V. B. Golubev,V. B. Golubev,Aleksandr Korol,Aleksandr Korol,S.V. Koshuba,D. P. Kovrizhin,D. P. Kovrizhin,S. I. Serednyakov,S. I. Serednyakov,I. K. Surin,I. K. Surin,A.I. Tekut`ev,Y. Usov,Y. Usov +20 more
TL;DR: In this paper, a new spectrometric channel of the SND electromagnetic calorimeter is described, which is designed for the study of the e+e−→ n process at the VEPP-2000 e−e− collider.