SYNOPSIS The aim of this article is to test and to improve existing models combining rhe-ological data with the molecular weight distribution (MWD). This process of testing and improving was separated into two distinct steps: First, the mixing behavior of the relaxation modulus obtained from a polymer blend was investigated and compared with the proposed mixing behavior derived from the linear ...

We derive a thermal QCD sum rule for the correlation function of two vector currents in the rho-meson channel. It takes into account the non-perturbative contributions of the additional , O(3)-invariant operators, which appear due to the breakdown of Lorentz invariance at finite temperature. The mixing of the new operators has a drastic effect on their coefficients. Also our evaluation of the t...

Time-dependent CP asymmetries in B decays from interference of B-B 0 mixing and b → cc̄s, uūd, sqq̄, and direct asymmetries from interference of b → cūs and b → uc̄s are studied, improving errors in the weak phases β and γ to ±1◦ and ±7◦, respectively. Two kinds of tests for New Physics are discussed: 1. Deviations of asymmetries in b → sqq̄ decays from sin 2β sin∆mt. 2. Violation of a sum rule for...

A number of old and new methods for computing K → ππ amplitudes on the lattice are reevaluated. They all involve a non-perturbative determination of matching coefficients. I will show how problems related to operator mixing can be greatly reduced by introducing the O.P.E. of hadronic currents directly on the lattice. Applications to the evaluation of CP-symmetric (∆I = 1/2 rule) and CP-violatin...

Time-dependent CP asymmetries in B decays from interference of B-B 0 mixing and b → cc̄s, uūd, sqq̄, and direct asymmetries from interference of b → cūs and b → uc̄s are studied, improving errors in the weak phases β and γ to ±1◦ and ±7◦, respectively. Two kinds of tests for New Physics are discussed: 1. Deviations of asymmetries in b → sqq̄ decays from sin 2β sin∆mt. 2. Violation of a sum rule for...

In this topical review we argue that neutrino mass and mixing data motivates extending the Standard Model (SM) to include a non-Abelian discrete flavour symmetry in order to accurately predict the large leptonic mixing angles and  violation. We begin with an overview of the SM puzzles, followed by a description of some classic lepton mixing patterns. Lepton mixing may be regarded as a deviati...

A single base rule representing a fundamental inter-relationship between variables within a dataset can generate a large number of derivative rules. These are rules that appear interesting only due to the inter-relationship that is best represented by the base rule. This phenomena is well understood with respect to derivative rules formed by adding unproductive conditions to the antecedent of t...

Star formation plays an important role in the fate of interacting galaxies. To date, most galactic simulations including star formation have used a density-dependent star formation rule designed to approximate a Schmidt law. Here, I present a new star formation rule which is governed by the local rate of energy dissipation in shocks. The new and old rules are compared using self-consistent simu...

We consider two distinct centers which arise in measuring how quickly a random walk on a tree mixes. Lovász and Winkler [8] point out that stopping rules which “look where they are going” (rather than simply walking a fixed number of steps) can achieve a desired distribution exactly and efficiently. Considering an optimal stopping rule that reflects some aspect of mixing, we can use the expecte...