Uncertainty of the two-loop RG upper bound on the Higgs mass

A modified criterion of the SM perturbative consistency is proposed. It is based on the analytic properties of the two-loop SM running couplings. Under the criterion adopted, the Higgs mass up to 380 GeV might not give rise to strong coupling prior to the Planck scale. This means that the light Higgs boson is possibly preferred for reasons other than the SM perturbative consistency, i.e., for reasons beyond the SM.     

Expansion of the working range of forevacuum plasma electron sources toward higher pressures

It is shown that the pressure in forevacuum plasma electron sources is limited from above by a current component that arises in the accelerating gap from a high-voltage glow discharge and dominates in the electron beam. The working pressure range of such electron sources can be expanded toward higher pressures by limiting the current of the high-voltage glow discharge in the accelerating gap.     

Critical broadening of EPR line in molecular crystals of free radicals

Using the EPR method, the members of free radicals of the hydrazyl group have been studied within a wide temperature range. In all the samples at temperatures 0.05?3K the existence of a phase transition to an antiferromagnetic state is found out. Dynamics of critical fluctuations near the phase transition have been investigated. Two regimes of critical spin relaxation are discovered.     

Modeling of Gaseous Chlorine Production in a Static Electrolyzer

Transfer of hydroxide and hydroxonium ions in bulk of sodium chloride solution in the course of gaseous chlorine production in a static electrolyzer was considered and a relationship was derived to deter- mine the characteristics of a chlorinator. Principles of selecting electrolyzer currents to obtain gaseous chlorine in a static chlorinator were recommended.     

Formation of Gradient Metalloceramic Materials Using Electron-Beam Irradiation in the Forevacuum

Russian Physics Journal - Results of using an electron beam formed by a forevacuum plasma electron source to sinter metalloceramic materials in powder form are reported. As the materials to be...     

Black Hole Shadows Constrain Extended Gravity

Journal of Experimental and Theoretical Physics - The first images of black hole shadows open new possibilities to constrain modern extended gravity theories. We present the method of shadow...     

Erratum to: Antitumor activity of carboplatin in the composition of a copolymer of lactic and glycolic acids

Russian Chemical Bulletin - To the article “Antitumor activity of carboplatin in the composition of a copolymer of lactic and glycolic acids,” by E. D. Nikolskaya, O. A. Zhunina, N. G....     

Investigation of the reaction π − p → η′π 0 n at the VES spectrometer

Results obtained by investigating the reaction π ^? p → η′π ⁰ n at the VES spectrometer (Institute for High Energy Physics, Protvino) are presented. The effective-mass spectrum and angular distributions of η′π ⁰ events are compared with their counterparts for ηπ ⁰ and η′π ^? events selected from the same data sample. The ratio R of the branching fractions for the decays of a ₂ ⁰ (1320) mesons into η′π and ηπ is measured. The result is R=0.047±0.018, which agrees with the value measured previously for a ₂ ^? . An investigation of P-wave production in the η′π ⁰ and ηπ ⁰ systems over the effective-mass interval 1.45–1.9 GeV/c2 leads to the conclusion that the coupling of the exotic object π ₁ (1600) to the ρπ channel is suppressed in relation to its coupling to the η′π or the b ₁(1235)π channel.     

Investigation of hybrid states in the VES experiment at the Institute for High Energy Physics (Protvino)

Experimental investigations of candidates for hybrid mesons in the VES experiment at the Institute for High Energy Physics (Protvino) are surveyed. The data in question concern π ₁ (1400) characterized by the exotic quantum numbers of J ^PC = 1^?+ and observed in the ηπ ^? final state; JPC = 1^?+ π ₁ (1600) in the ηπ ^?, b ₁ (1235)π, and f ₁(1285)π ^? final states; and J _PC = 0^?+ π(1800) in the f ₀(980)π ^?, f ₀(1300)π ^?, f ₀(1500)π ^?, and a ₀ ^? (980)η final states. New results are given along with data published previously.     

Characteristics of composite propellant ignition by a CO2-laser

The delay time of ignition of a composite propellant based on ammonium perchlorate by a CO₂-laser is measured at various pressures and radiant flux densities. The characteristics of the propellant at the moment of ignition are calculated. The obtained rate constants of the reactions in the propellant are compared to the respective rate constants of the reactions in the c-phase occurring during the combustion of the composite propellant.