The QCD sum rule for the correlator of topological charge densities χ(Q2) and related to it longitudinal part of the correlator of singlet axial currents is considered in the framework of instanton model. The coupling constant fη′ of η -meson with the singlet axial current is determined. Its value appears to be in a good coincidence with the value determined recently from the connection of the ...

Hybrid cc̄g of quantum numbers 1−− are considered in a quark model with constituant quarks and gluon. The lowest JP = 1− states may be built in two ways, lg = 1 (gluon excited) corresponding to an angular momentum between the gluon and the cc̄ system, while lcc̄ = 1 (quark excited) corresponds to an angular momentum between the c and the c̄. The lowest lying hybrid JP = 1− state in the flux tube mo...

In task-switching paradigms, participants are often slower on incongruent than congruent trials, a pattern known as the task-rule congruency effect. This effect suggests that irrelevant task rules or associated responses may be retrieved automatically in spite of task cues. The purpose of the present study was to examine whether the task-rule congruency effect may be modulated via manipulations...

If the lively discussion of the p-w system and the A2 splitting at this conference is any guide, the problems of resonance mixtures will continue to be an active one for some time, Therefore I would like to review here a simple formalism for treating the problem and in particular to emphasize certain points: 1. The parameter which gives the nonorthogonality of the underlying states caused by th...

We consider the most general supersymmetric model with minimal particle content and an additional discrete Z3 symmetry (instead of R-parity), which allows lepton number violating terms and results in non-zero Majorana neutrino masses. We investigate whether the currently measured values for lepton masses and mixing can be reproduced. We set up a framework in which Lagrangian parameters can be i...

gas mixing in a t-shape micro mixer has been simulated using the direct simulation monte carlo (dsmc) method. it is considered that the adequate mixing occurs when the mass composition of the species, co or n2, deviates below 1 % from their equilibrium composition. the mixing coefficient is defined as the ratio of the mixing length to the main channel’s height. as the inlet kn increases, while ...

The influence of dose rate, i.e., ion flux, on ion beam mixing in Nb-Si bilayer samples was measured at room temperature and 325 °C. At the higher temperature, an increase in dose rate of a factor of 20 caused a decrease in the thickness of the mixed layer by a factor of 1.6 for equal total doses. At room temperature, the same change in flux had no effect on mixing. These results are consistent...

We human beings show remarkable adaptability in response to complex surroundings, we adopt different behavioral modes at occasions, such multimodality is critical our survival. Yet, how this affects the evolution of cooperation remains largely unknown. Here build a toy model address issue by considering population with bimodal behaviors, or specifically, Fermi and Tit-for-tat updating rules. Wh...

In this paper, we study the role of degree mixing in the naming game. It is found that consensus can be accelerated on disassortative networks. We provide a qualitative explanation of this phenomenon based on clusters statistics. Compared with assortative mixing, disassortative mixing can promote the merging of different clusters, thus resulting in a shorter convergence time. Other quantities, ...