598 research outputs found
High Precision Mass Measurements in and Families Revisited
High precision mass measurements in and families performed
in 1980-1984 at the VEPP-4 collider with OLYA and MD-1 detectors are revisited.
The corrections for the new value of the electron mass are presented. The
effect of the updated radiative corrections has been calculated for the
and mass measurements.Comment: 5 pages, 1 table, submitted to Phys. Lett.
ΠΡΠ΅Π½ΠΊΠ° ΡΠ²ΠΎΠΉΡΡΠ² ΠΊΠΎΡΡΠ½ΠΎΠ·Π°ΠΌΠ΅ΡΠ°ΡΡΠΈΡ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΏΠΎΠ»ΠΈΡΡΠΈΠ»Π΅Π½Π³Π»ΠΈΠΊΠΎΠ»Ρ Π΄ΠΈΠ°ΠΊΡΠΈΠ»Π°ΡΠ° ΠΈ ΠΎΠΊΡΠ°ΠΊΠ°Π»ΡΡΠΈΠ΅Π²ΠΎΠ³ΠΎ ΡΠΎΡΡΠ°ΡΠ° Π½Π° ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΌΠΎΠ½ΠΎΠΊΠΎΡΡΠΈΠΊΠ°Π»ΡΠ½ΠΎΠ³ΠΎ Π΄ΠΈΠ°ΡΠΈΠ·Π°ΡΠ½ΠΎΠ³ΠΎ Π΄Π΅ΡΠ΅ΠΊΡΠ° Π±Π΅Π΄ΡΠ΅Π½Π½ΠΎΠΉ ΠΊΠΎΡΡΠΈ ΠΊΡΡΡΡ: ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅
Background. The problem of bone defects replacement is relevant nowadays, that is why many scientists create new synthetic bone substitutes, but the ideal material has not been found so far.
The aims of the study: 1) to determine the suitability of the monocortical defect model in the rat femur diaphysis with additional prophylactic reinforcement with a bone plate for assessing the biological properties of implanted materials using the commercially available ChronOS material as an example; 2) to assess of the osteoconductive properties of composite materials based on poly(ethylene glycol)diacrylate and octacalcium phosphate with architecture Kelvin and gyroid types on the developed model.
Methods. A prospective study, level of evidence II. A monocortical defect of the rat femoral diaphysis (length 7 mm) was produced under anaesthesia in aseptic conditions and fixed with a polyetheretherketone plate and six titanium screws. In the control group, the defect was left empty. In other groups, blocks of one of three materials were implanted ΡhronOS and composites of poly(ethylene glycol)diacrylate and octacalcium phosphate with 3D-printed Kelvin and gyroid architectures. After 3 and 6 weeks, the rats were sacrificed, and histological examination of the defect zone was performed. The amount of newly formed bone tissue was histometricly assessed, followed by statistical processing of the results.
Results. All rats have reached the planned endpoint, and there were no infectious complications or loss of fixation. Histological examination of the defect zone revealed minimal bone growth in the Control group, rather slow bone formation in the Gyroid group, and statistically significantly more pronounced bone formation in the pores of the materials in the Kelvin and Chronos groups.
Conclusions. Bone defect in this model was not spontaneously filled with bone tissue and allowed us to study the biological properties of bone substitutes (the ability to biodegrade and osteoconductive properties). The osteoconductive properties of a composite material based on poly(ethylene glycol)diacrylate and octacalcium phosphate with a Kelvin architecture are higher than with a gyroid architecture and are comparable to that of the ΡhronOS.ΠΠΊΡΡΠ°Π»ΡΠ½ΠΎΡΡΡ. ΠΡΠΎΠ±Π»Π΅ΠΌΠ° Π·Π°ΠΌΠ΅ΡΠ΅Π½ΠΈΡ Π΄Π΅ΡΠ΅ΠΊΡΠΎΠ² ΠΊΠΎΡΡΠΈ Π°ΠΊΡΡΠ°Π»ΡΠ½Π° Π² Π½Π°ΡΡΠΎΡΡΠ΅Π΅ Π²ΡΠ΅ΠΌΡ, ΠΏΠΎΡΡΠΎΡΠ½Π½ΠΎ Π²Π΅Π΄ΡΡΡΡ ΠΏΠΎΠΈΡΠΊΠΈ Π½ΠΎΠ²ΡΡ
ΡΠΈΠ½ΡΠ΅ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΎΡΡΠ½ΠΎΠ·Π°ΠΌΠ΅ΡΠ°ΡΡΠΈΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ², ΠΎΠ΄Π½Π°ΠΊΠΎ ΠΈΠ΄Π΅Π°Π»ΡΠ½ΡΠΉ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π» Π½Π΅ Π½Π°ΠΉΠ΄Π΅Π½ Π΄ΠΎ ΡΠΈΡ
ΠΏΠΎΡ.
Π¦Π΅Π»ΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ: 1) ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΠΏΡΠΈΠ³ΠΎΠ΄Π½ΠΎΡΡΠΈ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΌΠΎΠ½ΠΎΠΊΠΎΡΡΠΈΠΊΠ°Π»ΡΠ½ΠΎΠ³ΠΎ Π΄Π΅ΡΠ΅ΠΊΡΠ° Π΄ΠΈΠ°ΡΠΈΠ·Π° Π±Π΅Π΄ΡΠ΅Π½Π½ΠΎΠΉ ΠΊΠΎΡΡΠΈ ΠΊΡΡΡΡ Ρ Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΡΠΌ ΠΏΡΠΎΡΠΈΠ»Π°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈΠΌ Π°ΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΏΡΠΈ ΠΏΠΎΠΌΠΎΡΠΈ Π½Π°ΠΊΠΎΡΡΠ½ΠΎΠΉ ΠΏΠ»Π°ΡΡΠΈΠ½Ρ Π΄Π»Ρ ΠΎΡΠ΅Π½ΠΊΠΈ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ²ΠΎΠΉΡΡΠ² ΠΈΠΌΠΏΠ»Π°Π½ΡΠΈΡΡΠ΅ΠΌΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π½Π° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ ΠΊΠΎΠΌΠΌΠ΅ΡΡΠ΅ΡΠΊΠΈ Π΄ΠΎΡΡΡΠΏΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° ΡhronOS; 2) ΠΎΡΠ΅Π½ΠΊΠ° ΠΎΡΡΠ΅ΠΎΠΊΠΎΠ½Π΄ΡΠΊΡΠΈΠ²Π½ΡΡ
ΡΠ²ΠΎΠΉΡΡΠ² ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΏΠΎΠ»ΠΈΡΡΠΈΠ»Π΅Π½Π³Π»ΠΈΠΊΠΎΠ»Ρ Π΄ΠΈΠ°ΠΊΡΠΈΠ»Π°ΡΠ° ΠΈ ΠΎΠΊΡΠ°ΠΊΠ°Π»ΡΡΠΈΠ΅Π²ΠΎΠ³ΠΎ ΡΠΎΡΡΠ°ΡΠ° Ρ Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΠΎΠΉ ΠΠ΅Π»ΡΠ²ΠΈΠ½Π° ΠΈ ΡΠΈΠΏΠ° Π³ΠΈΡΠΎΠΈΠ΄ Π½Π° ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ.
ΠΠ°ΡΠ΅ΡΠΈΠ°Π» ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. ΠΠΎΠ½ΠΎΠΊΠΎΡΡΠΈΠΊΠ°Π»ΡΠ½ΡΠΉ Π΄Π΅ΡΠ΅ΠΊΡ Π΄ΠΈΠ°ΡΠΈΠ·Π° Π±Π΅Π΄ΡΠ΅Π½Π½ΠΎΠΉ ΠΊΠΎΡΡΠΈ ΠΊΡΡΡ ΡΠ°Π·ΠΌΠ΅ΡΠΎΠΌ 7 ΠΌΠΌ Π² Π΄Π»ΠΈΠ½Ρ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΠ»ΠΈ ΠΏΠΎΠ΄ Π½Π°ΡΠΊΠΎΠ·ΠΎΠΌ Π² Π°ΡΠ΅ΠΏΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ ΠΈ ΡΠΈΠΊΡΠΈΡΠΎΠ²Π°Π»ΠΈ ΠΏΠΎΠ»ΠΈΡΡΠΈΡΡΡΠΈΡΠΊΠ΅ΡΠΎΠ½ΠΎΠ²ΠΎΠΉ ΠΏΠ»Π°ΡΡΠΈΠ½ΠΎΠΉ ΠΈ ΡΠ΅ΡΡΡΡ ΡΠΈΡΠ°Π½ΠΎΠ²ΡΠΌΠΈ Π²ΠΈΠ½ΡΠ°ΠΌΠΈ. ΠΡΡΡ ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»ΡΠ»ΠΈ ΡΠ»ΡΡΠ°ΠΉΠ½ΡΠΌ ΠΎΠ±ΡΠ°Π·ΠΎΠΌ Π½Π° ΡΠ΅ΡΡΡΠ΅ Π³ΡΡΠΏΠΏΡ ΠΏΠΎ 12 ΠΎΡΠΎΠ±Π΅ΠΉ Π² ΠΊΠ°ΠΆΠ΄ΠΎΠΉ. Π Π³ΡΡΠΏΠΏΠ΅ ΠΠΎΠ½ΡΡΠΎΠ»Ρ Ρ ΠΆΠΈΠ²ΠΎΡΠ½ΡΡ
ΠΊΠΎΡΡΠ½ΡΠΉ Π΄Π΅ΡΠ΅ΠΊΡ Π½Π΅ Π·Π°ΠΏΠΎΠ»Π½ΡΠ»ΠΈ. Π£ ΠΆΠΈΠ²ΠΎΡΠ½ΡΡ
Π² Π³ΡΡΠΏΠΏΠ΅ Π₯ΡΠΎΠ½ΠΎΡ Π΄Π΅ΡΠ΅ΠΊΡ Π·Π°ΠΏΠΎΠ»Π½ΡΠ»ΠΈ ΠΏΠΎΠ΄Π³ΠΎΡΠΎΠ²Π»Π΅Π½Π½ΡΠΌ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠΌ chronOS Π² Π²ΠΈΠ΄Π΅ ΠΏΠΎΠ»ΡΡΠΈΠ»ΠΈΠ½Π΄ΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π±Π»ΠΎΠΊΠ°, Π² Π³ΡΡΠΏΠΏΠ΅ ΠΠ΅Π»ΡΠ²ΠΈΠ½ ΠΈΡΡΠ»Π΅Π΄ΡΠ΅ΠΌΡΠΌ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠΌ Ρ Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΠΎΠΉ ΠΠ΅Π»ΡΠ²ΠΈΠ½Π°, Π² Π³ΡΡΠΏΠΏΠ΅ ΠΠΈΡΠΎΠΈΠ΄ ΠΈΡΡΠ»Π΅Π΄ΡΠ΅ΠΌΡΠΌ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠΌ Ρ Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΠΎΠΉ ΡΠΈΠΏΠ° Π³ΠΈΡΠΎΠΈΠ΄. Π§Π΅ΡΠ΅Π· 3 ΠΈ 6 Π½Π΅Π΄. ΠΊΡΡΡ Π²ΡΠ²ΠΎΠ΄ΠΈΠ»ΠΈ ΠΈΠ· ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ° ΠΈ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΠ»ΠΈ Π³ΠΈΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π·ΠΎΠ½Ρ Π΄Π΅ΡΠ΅ΠΊΡΠ°. ΠΠ°ΡΠ΅ΠΌ Π²ΡΠΏΠΎΠ»Π½ΡΠ»ΠΈ Π³ΠΈΡΡΠΎΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΡΡ ΠΎΡΠ΅Π½ΠΊΡ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π° Π½ΠΎΠ²ΠΎΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½Π½ΠΎΠΉ ΠΊΠΎΡΡΠ½ΠΎΠΉ ΡΠΊΠ°Π½ΠΈ Ρ ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΠ΅ΠΉ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΎΠΉ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ².
Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. Π Ρ
ΠΎΠ΄Π΅ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ° Π²ΡΠ΅ ΠΆΠΈΠ²ΠΎΡΠ½ΡΠ΅ Π΄ΠΎΡΡΠΈΠ³Π»ΠΈ ΠΏΠ»Π°Π½ΠΈΡΡΠ΅ΠΌΠΎΠΉ ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΠΉ ΡΠΎΡΠΊΠΈ, ΠΈΠ½ΡΠ΅ΠΊΡΠΈΠΎΠ½Π½ΡΠ΅ ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΡ ΠΈ ΠΏΠΎΡΠ΅ΡΡ ΡΠΈΠΊΡΠ°ΡΠΈΠΈ Π·Π°ΡΠΈΠΊΡΠΈΡΠΎΠ²Π°Π½Ρ Π½Π΅ Π±ΡΠ»ΠΈ. ΠΡΠΈ Π³ΠΈΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΌ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΈ Π·ΠΎΠ½Ρ Π΄Π΅ΡΠ΅ΠΊΡΠ° Π²ΡΡΠ²Π»Π΅Π½ ΠΌΠΈΠ½ΠΈΠΌΠ°Π»ΡΠ½ΡΠΉ ΡΠΎΡΡ ΠΊΠΎΡΡΠΈ Π² Π³ΡΡΠΏΠΏΠ΅ ΠΠΎΠ½ΡΡΠΎΠ»Ρ, Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎ ΠΌΠ΅Π΄Π»Π΅Π½Π½ΠΎΠ΅ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΊΠΎΡΡΠΈ Π² ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π΅ Π³ΡΡΠΏΠΏΡ ΠΠΈΡΠΎΠΈΠ΄ ΠΈ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈ Π·Π½Π°ΡΠΈΠΌΠΎ Π±ΠΎΠ»Π΅Π΅ Π²ΡΡΠ°ΠΆΠ΅Π½Π½ΠΎΠ΅ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΊΠΎΡΡΠ½ΠΎΠΉ ΡΠΊΠ°Π½ΠΈ Π² ΠΏΠΎΡΠ°Ρ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π² Π³ΡΡΠΏΠΏΠ°Ρ
ΠΠ΅Π»ΡΠ²ΠΈΠ½ ΠΈ Π₯ΡΠΎΠ½ΠΎΡ.
ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½Π°Ρ ΠΌΠΎΠ΄Π΅Π»Ρ Π΄Π΅ΡΠ΅ΠΊΡΠ° ΠΊΠΎΡΡΠΈ ΡΠΏΠΎΠ½ΡΠ°Π½Π½ΠΎ Π½Π΅ Π·Π°ΠΏΠΎΠ»Π½ΡΠ΅ΡΡΡ ΠΊΠΎΡΡΠ½ΠΎΠΉ ΡΠΊΠ°Π½ΡΡ ΠΈ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΡΡ ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ²ΠΎΠΉΡΡΠ² ΠΊΠΎΡΡΠ½ΠΎΠΏΠ»Π°ΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² (ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΡ ΠΊ Π±ΠΈΠΎΠ΄Π΅Π³ΡΠ°Π΄Π°ΡΠΈΠΈ ΠΈ ΠΎΡΡΠ΅ΠΎΠΊΠΎΠ½Π΄ΡΠΊΡΠΈΠ²Π½ΡΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π°). ΠΡΡΠ΅ΠΎΠΊΠΎΠ½Π΄ΡΠΊΡΠΈΠ²Π½ΡΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π° ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΏΠΎΠ»ΠΈΡΡΠΈΠ»Π΅Π½Π³Π»ΠΈΠΊΠΎΠ»Ρ Π΄ΠΈΠ°ΠΊΡΠΈΠ»Π°ΡΠ° ΠΈ ΠΎΠΊΡΠ°ΠΊΠ°Π»ΡΡΠΈΠ΅Π²ΠΎΠ³ΠΎ ΡΠΎΡΡΠ°ΡΠ° Ρ Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΠΎΠΉ ΠΠ΅Π»ΡΠ²ΠΈΠ½Π° Π²ΡΡΠ΅, ΡΠ΅ΠΌ Ρ Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΠΎΠΉ ΡΠΈΠΏΠ° Π³ΠΈΡΠΎΠΈΠ΄, ΠΈ ΡΠΎΠΏΠΎΡΡΠ°Π²ΠΈΠΌΡ Ρ ΡΠ°ΠΊΠΎΠ²ΡΠΌΠΈ Ρ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° ΡhronOS
New precise determination of the \tau lepton mass at KEDR detector
The status of the experiment on the precise lepton mass measurement
running at the VEPP-4M collider with the KEDR detector is reported. The mass
value is evaluated from the cross section behaviour around the
production threshold. The preliminary result based on 6.7 pb of data is
MeV. Using 0.8 pb of data
collected at the peak the preliminary result is also obtained:
eV.Comment: 6 pages, 8 figures; The 9th International Workshop on Tau-Lepton
Physics, Tau0
Liquid krypton electromagnetic calorimeter
Abstract A calorimeter using 30 tons of liquid krypton for the KEDR detector is being constructed. The main effects which determine the energy and space resolution have been studied. An energy resolution of 1.7% at 1.2 GeV was obtained with the prototype. A space resolution of 0.4 mm for relativistic particles has been reached with the prototype
A two-phase argon avalanche detector operated in a single electron counting mode
The performance of a two-phase Ar avalanche detector in a single electron
counting mode was studied, with regard to potential application in coherent
neutrino-nucleus scattering and dark matter search experiments. The detector
comprised of a 1 cm thick liquid Ar layer and a triple-GEM multiplier operated
in the saturated vapour above the liquid phase. Successful operation of the
detector in single electron counting mode, in the gain range from 6000 to
40000, has for the first time been demonstrated.Comment: 9 pages, 9 figures. Submitted to JINS
Measurement of and between 3.12 and 3.72 GeV at the KEDR detector
Using the KEDR detector at the VEPP-4M collider, we have measured
the values of and at seven points of the center-of-mass
energy between 3.12 and 3.72 GeV. The total achieved accuracy is about or
better than at most of energy points with a systematic uncertainty of
about . At the moment it is the most accurate measurement of in
this energy range
Statistical methods for providing the stability of the solutions of inverse problems and their application to decrease rotor vibroactivity
Technological coaxial plasma accelerator
Plasma sources for accelerators intended for separation processes and surface treatment have been investigated.
The conditions for the choice of system parameters, as well as plasma flux, injection system, and power source have
been discussed. These parameters have been obtained experimentally. A conclusion about the role of metal erosion
products of the electrodes has also been drawn.ΠΡΡΠ»Π΅Π΄ΡΡΡΡΡ ΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½ΡΠ΅ ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠΈ-ΡΡΠΊΠΎΡΠΈΡΠ΅Π»ΠΈ Π΄Π»Ρ ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ² ΡΠ΅ΠΏΠ°ΡΠ°ΡΠΈΠΈ ΠΈ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ.
ΠΠ±ΡΡΠΆΠ΄Π°ΡΡΡΡ ΡΡΠ»ΠΎΠ²ΠΈΡ Π²ΡΠ±ΠΎΡΠ° ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΡΠΈΡΡΠ΅ΠΌΡ, ΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½ΠΎΠ³ΠΎ ΠΏΠΎΡΠΎΠΊΠ°, ΡΠΈΡΡΠ΅ΠΌΡ Π½Π°ΠΏΡΡΠΊΠ° Π³Π°Π·Π°, ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠ°
ΠΏΠΈΡΠ°Π½ΠΈΡ. ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎ ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ ΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ. Π‘Π΄Π΅Π»Π°Π½ Π²ΡΠ²ΠΎΠ΄ ΠΎ ΡΠΎΠ»ΠΈ ΠΌΠ΅ΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΡΡΠΎΠ·ΠΈΠΈ
ΡΠ»Π΅ΠΊΡΡΠΎΠ΄ΠΎΠ².ΠΠΎΡΠ»ΡΠ΄ΠΆΡΡΡΡΡΡ ΠΏΠ»Π°Π·ΠΌΠΎΠ²Ρ Π΄ΠΆΠ΅ΡΠ΅Π»Π° ΠΏΡΠΈΡΠΊΠΎΡΡΠ²Π°ΡΡΠ² Π΄Π»Ρ ΠΏΡΠΎΡΠ΅ΡΡΠ² ΡΠ΅ΠΏΠ°ΡΠ°ΡΡΡ ΡΠ° ΠΎΠ±ΡΠΎΠ±ΠΊΠΈ ΠΏΠΎΠ²Π΅ΡΡ
ΠΎΠ½Ρ.
ΠΠ±Π³ΠΎΠ²ΠΎΡΡΡΡΡΡΡ ΡΠΌΠΎΠ²ΠΈ Π²ΠΈΠ±ΠΎΡΡ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡΠ² ΡΠΈΡΡΠ΅ΠΌΠΈ, ΠΏΠ»Π°Π·ΠΌΠΎΠ²ΠΎΠ³ΠΎ ΠΏΠΎΡΠΎΠΊΡ, ΡΠΈΡΡΠ΅ΠΌΠΈ Π½Π°ΠΏΡΡΠΊΡ Π³Π°Π·Π°, Π΄ΠΆΠ΅ΡΠ΅Π»Π°
ΠΆΠΈΠ²Π»Π΅Π½Π½Ρ. ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎ ΠΎΠ΄Π΅ΡΠΆΠ°Π½Ρ ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈ. ΠΡΠΎΠ±Π»Π΅Π½Ρ Π²ΠΈΡΠ½ΠΎΠ²ΠΊΠΈ ΡΠΎΠ΄ΠΎ ΠΌΠ΅ΡΠ°Π»Π΅Π²ΠΈΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΡΠ² Π΅ΡΠΎΠ·ΡΡ
Π΅Π»Π΅ΠΊΡΡΠΎΠ΄ΡΠ²
Pion Form Factor at SND (new edition)
The update of the e^+e^-\to\pi^+\pi^- process cross section, measured in the
energy region \sqrt{s}<1 GeV with SND detector at VEPP-2M collider is
presented.Comment: Talk given at Int. Workshop e+e- Collisions from phi to psi, February
27 - March 2, 200
Search for narrow resonances in e+ e- annihilation between 1.85 and 3.1 GeV with the KEDR Detector
We report results of a search for narrow resonances in e+ e- annihilation at
center-of-mass energies between 1.85 and 3.1 GeV performed with the KEDR
detector at the VEPP-4M e+ e- collider. The upper limit on the leptonic width
of a narrow resonance Gamma(R -> ee) Br(R -> hadr) < 120 eV has been obtained
(at 90 % C.L.)
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