We study the radiative decay of Υ into a scalar glueball Υ → γGs using QCD factorization. We find that for this process the non-perturbative effects can be factorized into a matrix element defined in non-relativistic QCD which can be determined from leptonic decay of Υ, and into the gluon parton distribution amplitude, whose asymptotic form is known up to a normalization constant. Normalizing t...

Although there are no doubts that all observed strong interaction phenomena can be described within the theory of QCD, a quantitative description of the strong interaction phenomena in the low energy sector is still lacking, although some features of the low energy phenomena have been partially understood by the lattice gauge theory approach. The low energy sector of the physics of the strong i...

We extend the range of predictions of the isosinglet (or vector) down quark model to the fully allowed physical ranges, and also update this with the effect of new physics constraints. We constrain the present allowed ranges of sin(2β) and sin(2α), γ, xs, and ABs . In models allowing mixing to a new isosinglet down quark (as in E6) flavor changing neutral currents are induced that allow a Z med...

We analyze the mixing time of a class of oriented kinetically constrained spin models (KCMs) on a d-dimensional lattice of n sites. A typical example is the North-East model, a 0-1 spin system on the two-dimensional integer lattice that evolves according to the following rule: whenever a site’s southerly and westerly nearest neighbours have spin 0, with rate one it resets its own spin by tossin...

Permutation ambiguity of the classical Independent Component Analysis (ICA) may cause problems in feature extraction for pattern classification. Especially when only a small subset of components is derived from data, these components may not be most distinctive for classification, because ICA is an unsupervised method. We include a selective prior for de-mixing coefficients into the classical I...

A comprehensive model has been developed for calculating the viscosity of aqueous or mixed-solvent electrolyte systems ranging from dilute solutions to fused salts. The model incorporates a mixing rule for calculating the viscosity of solvent mixtures and a method for predicting the effect of finite electrolyte concentrations. The mixing rule represents the viscosity of multicomponent solvent m...

The self- and collective-diffusion behaviors of adsorbed methane, helium, and isobutane in zeolite frameworks LTA, MFI, AFI, and SAS were examined at various concentrations using a range of molecular simulation techniques including Molecular Dynamics (MD), Monte Carlo (MC), Bennett-Chandler (BC), and kinetic Monte Carlo (kMC). This paper has three main results. (1) A novel model for the process...

The formalism of conformal-solution theory (CST) has been extended to pure and mixed polar fluids with consideration of dipolar, quadrupolar and induced dipolar forces. The total potential energy is reduced to a form similar to that for neutral molecules by statistical averaging over orientations. The temperature dependence,s of the conformal parameters f, and h,, are derived and it is found th...

Line-mixing effects have been studied in the ν 1 Q Q K (K from 0 to 10) sub branches of methyl chloride (CH 3 Cl) perturbed by nitrogen (N 2). Laboratory Fourier transform spectra have been recorded at room temperature for various pressures of atmospheric interest. In order to accurately model these spectra, a theoretical approach accounting for line-mixing effects is necessary and proposed in ...