Analysis Of Physical Quantities Research Articles

Nonperturbative dynamics of hot non-Abelian gauge fields: Beyond the leading log approximation

Many aspects of high-temperature gauge theories, such as the electroweak baryon number violation rate, color conductivity, and the hard gluon damping rate, have previously been understood only at leading logarithmic order (that is, neglecting effects suppressed only by an inverse logarithm of the gauge coupling). We discuss how to systematically go beyond leading logarithmic order in the analysis of physical quantities. Specifically, we extend to next-to-leading-log order (NLLO) the simple leading-log effective theory due to B\"odeker that describes non-perturbative color physics in hot non-Abelian plasmas. A suitable scaling analysis is used to show that no new operators enter the effective theory at next-to-leading-log order. However, a NLLO calculation of the color conductivity is required, and we report the resulting value. Our NLLO result for the color conductivity can be trivially combined with previous numerical work by Moore to yield a NLLO result for the hot electroweak baryon number violation rate.

液体金属の融点近傍の物性値の次元解析

液体金属の融点近傍の物性値の次元解析

A proposal for type identification analysis of physical quantities

In the existing literature physical quantities are assigned their scalar or vector character in an arbitrary way; this frequently leads to inconsistencies in the corresponding equations. In this article it is proposed to introduce a type (or character) identification analysis which would be self-consistent, by being directly based on the original definitions of such quantities.

Dimensional Analysis of Physical Quantities, and the Correlation of Units

Dimensional Analysis of Physical Quantities, and the Correlation of Units