The VEPP-2000 e+e− collider has been operated at Budker Institute of Nuclear Physics since 2010. The experiments are performed with two detectors CMD-3 and SND. The calorimetry at the CMD-3 detector is based on three subsystems, two coaxial barrel calorimeters—Liquid Xenon Calorimeter and crystal CsI calorimeter, and endcap calorimeter with BGO crystals. This paper describes the CsI calorimeter of the CMD-3 detector. The calorimeter design, its electronics and calibration procedures are discussed.

Calorimeter (particle physics)

Coaxial

Calorimeter constant

Reaction calorimeter

10.1088/1748-0221/10/10/p10006

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Citations (17)

Status of the KEDR detector

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment (2002)

В.В. Анашин V.M. Aulchenko B.O. Baibusinov В.В. Балашов E. M. Baldin

Cherenkov detector

10.1016/s0168-9002(01)01789-2

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Citations (54)

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

EPJ Web of Conferences (2014)

М. Н. Ачасов R.R. Akhmetshin A. V. Anisenkov V.M. Aulchenko V.Sh. Banzarov

It’s good known the difference in 3.5 sigma between the muon (g – 2) experimental result and its calculation in Standard Model. To clarify this intriguing discrepancy the new stage of muon (g – 2) measurement is under preparation at Fermi National Laboratory. On other hand, regular data taking for measurements of hadron cross section production in e+ e− annihilations is under way since December 2010 at the electron-positron collider VEPP-2000 with the CMD-3 and SND detectors. The collected data sample corresponds to about 60 inverse picobarns of integrated luminosity per detector in the energy range from 0.32 up to 2 GeV. Preliminary analysis of various hadronic cross sections has been performed.

Sigma

Electron–positron annihilation

10.1051/epjconf/20147100121

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Citations (4)

Equipment for nanoscale biological structure studies with SAXS and WAXS using SR “VEPP-3” and “Siberia-2”

V. N. Korneev V. A. Shlektarev А. В. Забелин V.M. Aulchenko V. P. Tolochko

Small-angle X-ray scattering

10.13140/rg.2.2.30714.49602

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Study of ϕ→π+π−π0 with CMD-2 detector

Physics Letters B (2006)

R.R. Akhmetshin V.M. Aulchenko V.Sh. Banzarov Л.М. Барков N.S. Bashtovoy

The cross section of the process e+e−→π+π−π0 has been measured in the c.m. energy range 984–1060 MeV with the CMD-2 detector at the VEPP-2M collider. The obtained value of Br(ϕ→e+e−)Br(ϕ→π+π−π0)=(4.51±0.16±0.11)×10−5 is in good agreement with the previous measurements and has the best accuracy. Analysis of the Dalitz plot was performed. The contributions of the dominant ϕ→ρπ mechanism as well as of a small direct ϕ→3π amplitude were determined.

Dalitz plot

10.1016/j.physletb.2006.09.041

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Citations (58)

Experimental input from $e^+e^-$ machines to hadronic contribution to muon (g-2)

SciPost Physics Proceedings (2019)

М. Н. Ачасов R.R. Akhmetshin Artem Amirkhanov A. V. Anisenkov V.M. Aulchenko

Precise study of the hadrons production in \bm{e^+e^-} 𝐞+𝐞− annihilation at low energies provides important information about interactions of light quarks and spectroscopy of their bound states. These studies are especially important for theoretical calculations of the muon \bm{(g-2)} (𝐠−2) via the Standard Model because of the present difference between theoretical and experimental values exceeds three standard deviations. In this report we will discuss current status and recent results obtained by the CMD-3 experiment and will give a brief look to status of the BaBar and Belle II experiments.

10.21468/scipostphysproc.1.034

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Study of the process e+e−→K0LK0S in the c.m. energy range 1.05–1.38 GeV with CMD-2

Physics Letters B (2002)

R.R. Akhmetshin V.M. Aulchenko V.Sh. Banzarov Л.М. Барков S.E. Baru

The process $e^+e^- \to K^0_L K^0_S$ has been studied with the CMD-2 detector using about 950 events detected in the center-of-mass energy range from 1.05 to 1.38 GeV. The cross section exceeds the expectation based on the contributions of the rho(770), omega(782) and phi(1020) mesons only.

Electron–positron annihilation

10.1016/s0370-2693(02)02985-4

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Citations (41)

Liquid krypton electromagnetic calorimeter

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment (1993)

V.M. Aulchenko A. D. Bukin S. Klimenko G. M. Kolachev L.A. Leontiev

Krypton

Calorimeter (particle physics)

10.1016/0168-9002(93)91440-x

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Citations (13)

Study of thee+e−→ηγprocess with Spherical Neutral Detector at the VEPP-2Me+e−

Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology (2006)

М. Н. Ачасов V.M. Aulchenko K. Beloborodov A. V. Berdyugin А. Г. Богданчиков

In experiment with the SND detector at the VEPP-2M ${e}^{+}{e}^{\ensuremath{-}}$ collider the ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\eta}\ensuremath{\gamma}$ cross section was measured in the center-of-mass energy range $E=0.60--1.38\text{ }\text{ }\mathrm{GeV}$ with the integrated luminosity of $27.8\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$. The measured cross section is well described by the vector meson dominance model with contributions from the $\ensuremath{\rho}(770)$, $\ensuremath{\omega}(783)$, $\ensuremath{\phi}(1020)$, ${\ensuremath{\rho}}^{\ensuremath{'}}(1465)$ resonances and agrees with results of previous measurements. The decay probabilities $\mathcal{B}(\ensuremath{\phi}\ensuremath{\rightarrow}\ensuremath{\eta}\ensuremath{\gamma})$, $\mathcal{B}(\ensuremath{\omega}\ensuremath{\rightarrow}\ensuremath{\eta}\ensuremath{\gamma})$ and $\mathcal{B}(\ensuremath{\rho}\ensuremath{\rightarrow}\ensuremath{\eta}\ensuremath{\gamma})$ were measured with the accuracies better than or comparable to the world averages.

10.1103/physrevd.74.014016

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Citations (35)