[en] Information for users of the UNIMOD-2 program who feel the need to write their subprogram is presented. The UNIMOD-2 program is designrd for simulation of experiments with colliding e⁺e^- beams

[en] The results of the measurement of radiative decays of ρ and ω mesons with the Neutral Detector at e⁺e^- collider VEPP-2M are presented. The branching ratio of the decay ω → π⁰γ was measured with higher experiments accuracy: B(ω → π⁰γ)=0.089±0.006. The ρ⁰ → π⁰γ branching ratio was measured for the first time: B(ρ⁰ → π⁰γ)=(7.9±2.0)x10^-4. The decays ρω → ηγ were studied. Their branching ratios with the assumption of constructive ρ-ω interference are: B(ω→ηγ)=(7.3±2.9)x10^-4, B(ρ→ηγ)=(4.0±1.1)x10^-4. The branching ratios of ω→π⁺π^-π⁰ and ω→e⁺e^- decays were also measured: B(ω→π⁺π^-π⁰)=0.894±0.006, B(ω→e⁺e^-)=(7.14±0.36)x10^-5. The upper limit of the ω→π⁰π⁰γ branching ratio was placed: B(ω→π⁰π⁰γ)<4x10^-4 at 90% confidence level

[en] Technical manual for users of the UNIMOD-2 program designed for simulation of experiments with colliding e⁼e^- beams is described. The program is written in the ASSEMBLER and FORTRAN-77 languages and it functions in the SVM operational system (System of virtual machines) using ES computers

[en] A review of experimental results obtained by a neutral detector at the VEPP-2M e⁺e^- storage ring in the 2E=0.5-1.4 GeV energy range with integral luminosity of 19 pb^-1 is presented. The total meson production cross sections in e⁼e^-→ ωπ⁰, e⁼e^- → π⁺π^-π⁰, e⁺e^-→ ηπ⁺π^-, e⁺e^- → π⁺π^-π⁺π^-, e⁼e^- → π⁺π^-π⁰π⁰, e⁺e^- → π⁰π⁰γ processes are studied. 106 refs.; 23 figs.; 9 tabs

[en] An analysis is made of the possibility of different theoretical descriptions of the decays Φ→ρπ→π⁺π^-π⁰, Φ→π⁰γ taking into account both the Φ-ω mixing and the direct decays Φ→ρπ, Φ→π⁰γ. For this purpose the data from the Neutral Detector on the reactions e⁺e^-→π⁺π^-π⁰, π⁰γ, K_SK_L in the interval √s=700-1050 MeV are used. Experimental data are shown not to permit one to answer the question what is the origin of the decay Φ→ρπ(π⁰γ). 16 refs.; 3 figs.; 2 tabs

[en] The ω → π⁰e⁺e^- decay has been observed in the experiment performed at the electron-positron storage ring VEPP-2M with the Neutral Detector. The decay branching has been found to be BR (ω → π⁰e⁺e^-)=(0.59±0.19)x10^-3. The upper limit for the φ → π⁰e⁺e^- decay branching ratio has been as well determined: BR(φ → π⁰e⁺e^-)<1.2x10^-4

[en] An experiment carried out in the electron-positron storage ring VEPP-2M with the Neutral Detector has demonstrated the existence of the decay ω→π⁰e⁺e^- and has measured its relative probability BR(ω→π⁰e⁺e^-) = (0.59 +- 0.19)x10^-3. An upper limit has also been established for the probability of the decay phi→π⁰e⁺e^-: BR(phi→π⁰e⁺e^-)<1.2x10^-4

[en] One- and two-coordinate detectors with proportional chambers developed at the Budker Institute of Nuclear Physics (BINP) are presented. The parallax-free 10 MHz one-coordinate OD-3.1 and OD-3.2 detectors are used in synchrotron radiation powder diffraction and SAXS experiments. The two-coordinate DED-3 detector with a multiwire proportional chamber (MWPC) is used in Laue diffraction. The latest modification of this detector, DED-5, with a working area of 384 x 384 mm, is briefly described. The micro-strip detector prototype MSGC-100 has passed test synchrotron radiation experiments and the next modification (MSGC-500), with 500 channels for high energy, is under construction. The one-coordinate MWPC OD-160 detector, with an angle aperture of 160 degrees and a count rate of 3.3 GHz, is under construction. It will be used for high-resolution powder diffraction. Two types of gas chamber will be used: L for low energies (5-30 keV) and H for high energies (30-70 keV). A 16 degrees section with an H-chamber has been produced and tested on the synchrotron radiation beamline

[en] The project of the fast parallax-free, one-coordinate X-ray detector OD120 with the registration angle up to 360 deg. is presented. The operation principles and simulation results are discussed. The calculated angular resolution of the detector is 0.3x10^-3 rad for the focal distance of 350 mm

[en] An analysis is made of the possibility of different theoretical description of the decays omicron→ρπ→π⁺π^-π⁰ and omicron→π⁰γ taking into account both the omicron-ω mixing and the direct decays omicron→ρπ, omicron→π⁰γ. For this purpose, the data from the Neutral Detector on the reactions e⁺e^-→π⁺π^-π⁰γ, and K_SK_L in the interval √s=700-1050 Mev are used. The experimental data are shown not to provide the answer to the problem on the origin of the decay omicron→ρπ(πγ). This decay can be completely caused either by the omicron-ω mixing or by the direct decay omicron→ρπ(omicron→πγ)