Non-perturbative solutions in the electro-weak theory with tˉt\bar t t condensate and the tt-quark mass

We apply Bogoliubov compensation principle to the gauge electro-weak interaction to demonstrate a spontaneous generation of anomalous three-boson gauge invariant effective interaction. The non-trivial solution of compensation equations uniquely defines the form-factor of the anomalous interaction and parameters of the theory including value of gauge electro-weak coupling $g(M_W^2)$ in satisfactory agreement with its experimental value. A possibility of spontaneous generation of effective four-fermion interaction of heavy quarks is also demonstrated. This interaction defines an equation for a scalar bound state of heavy quarks which serve as a substitute for the elementary scalar Higgs doublet. As a result we calculate the $t$-quark mass $m_t\,=\,177\,GeV$ in satisfactory agreement with the experimental value. The results strongly support idea of $\bar t\,t$ condensate as a source of the electro-weak symmetry breaking.Comment: 16 pages, 5 figures. arXiv admin note: substantial overlap with arXiv:1103.395

CDF Wjj anomaly as a non-perturbative effect of the electro-weak interaction

The recently reported CDF excess at $120\,-\, 160\,GeV$ in invariant mass distribution of jet pairs accompanying $W$-boson is tentatively interpreted as a bound state of two $W$ decaying to quark-anti-quark pair. Non-perturbative effects of EW interaction obtained by application of Bogoliubov compensation approach lead to such bound state due to existence of anomalous three-boson gauge-invariant effective interaction. The application of this scheme gives satisfactory agreement with existing data without any adjusting parameter but the bound state mass $145\,GeV$.Comment: 5 pages, 2 figure

Synthesis and phase stability of the ZrO2-Ln2O3-Ta2O5 compositions for high tetragonality zirconia-based thermal barrier coatings

State-of-the-art TBC topcoat material is zirconia partially stabilized by 6-8% of yttria (ZY). The temperature limit for ZY coatings was determined to be 1200ºC on the basis of phase transitions and sintering properties. Rare-earth zirconates (Ln2Zr2O7) with pyrochlore structure were found to be very promising for thermal barrier coating materials. They possess high thermal stability up to the melting point (around 2300ºC), low thermal conductivity (1.5 W/m·K at 1000ºC for bulk material) and low sintering rate, but their fracture toughness is very low. On the other hand, a lot of experimental work was carried out on the search of alternative tetragonal zirconia stabilizers. Rare-earth oxides (neodymia, samaria, gadolinia, dysprosia, ytterbia, scandia and others) stabilized zirconia coatings were proved to have excellent mechanical properties combined with low thermal conductivity. It was found, that co-doped stabilized compositions offer better properties than ones with single stabilizer. Usually in the co-doped compositions the primary component is yttria and the secondary is rare-earth oxide, both components are stabilizers for zirconia. These compositions were shown to be effective in decreasing thermal conductivity, but their fracture toughness was decreased too. On that reason there is a trend on zirconia doping with destabilizing oxides to increase the tetragonality index and have low thermal conductivity at the same time. The present paper focuses on the co-precipitation synthesis and properties of the yttrium (YTaO4), neodymium (NdTaO4), gadolinium (GdTaO4) and dysprosium (DyTaO4) tantalate powder and tantalate-stabilized zirconia powders ZrO2-YTaO4, ZrO2-NdTaO4. ZrO2-GdTaO4 or ZrO2-DyTaO4. Their phase composition was investigated at different calcination temperatures. Both yttrium and rare earth tantalates were shown to have two types of monoclinic structures (M and M’). As to zirconia-based compositions, both single and multi-phase samples were obtained depending on the tantalate amount and calcination temperature. Tetragonality indexes up to 1,027 were obtained

LHC would-be γ γ\gamma\,\gamma excess as a non-perturbative effect of the electro-weak interaction

The recently reported would-be excess at $125\, GeV$ in invariant mass distribution of $\gamma\, \gamma$ and of $l^+\,l^+\,l^-\,l^-$ obtained in the course of the Higgs boson search at LHC is tentatively interpreted as a scalar bound state of two $W$. Non-perturbative effects of EW interaction obtained by application of Bogoliubov compensation approach lead to such bound state due to existence of anomalous three-boson gauge-invariant effective interaction. The application of this scheme gives satisfactory agreement with existing data without any adjusting parameter but the bound state mass $125\,GeV$, while $\sigma\,BR$ for $\gamma\,\gamma$ resonance is predicted to be twice more as the value for the SM Higgs. Decay channel $\gamma\,l^+\,l^-$ may serve as a decisive check of the interpretation.Comment: 6 pages, 4 figures. arXiv admin note: text overlap with arXiv:1110.313