Recent developments in effective field theory

Recent developments in effective field theory

We will give a short introduction to the one-nucleon sector of chiral perturbation theory and will address the issue of a consistent power counting and renormalization. We will discuss the infrared regularization and the extended on-mass-shell scheme. Both allow for the inclusion of further degrees of freedom beyond pions and nucleons and the application to higher-loop calculations. As applicat...

Recent Progress in Effective Field Theory

Applications of effective field theory to nucleon-nucleon scattering, quarkonia decay and production and B meson decay are discussed. Some unresolved issues are considered.

Recent developments in affine Toda quantum field theory

Recent Developments in Non-perturbative Quantum Field Theory

In the last couple of years we have been witnessing a series of impressive results in the framework of two different but related types of quantum theories: supersymmetric Yang–Mills theories in four dimensions and superstrings. They have in common space-time supersymmetry. They also share the property that a formal perturbative expansion can be defined for these theories, and “renormalization” ...

Recent Developments in Maser Theory

This review covers selected developments in maser theory since the previous meeting, Cosmic Masers: From Proto-Stars to Black Holes (Migenes & Reid 2002). Topics included are time variability of fundamental constants, pumping of OH megamasers and indicators for differentiating disks from bi-directional outflows.