We review the present theoretical and empirical knowledge for α s, the fundamental
coupling underlying the interactions of quarks and gluons in Quantum Chromodynamics …

The Lagrangian of Quantum Chromodynamics is invariant under conformal transformations.
Although this symmetry is broken by quantum corrections, it has important consequences for …

The universal radiative corrections common to neutron and superallowed nuclear beta
decays (also known as “inner” corrections) are revisited in light of a recent dispersion …

The AdS/CFT correspondence between string theory in AdS space and conformal field
theories in physical space-time leads to an analytic, semiclassical model for strongly …

A key issue in making precise predictions in QCD is the uncertainty in setting the
renormalization scale μ r and thus determining the correct values of the QCD running …

We compute, for the first time, the order α s 4 contributions to the Bjorken sum rule for
polarized electron-nucleon scattering and to the (nonsinglet) Adler function for the case of a …

The light-front holographic map** of classical gravity in anti-de Sitter space, modified by a
positive-sign dilaton background, leads to a nonperturbative effective coupling α s AdS (Q …

A key problem in making precise perturbative QCD predictions is to set the proper
renormalization scale of the running coupling. The conventional scale-setting procedure …

A key problem in making precise perturbative QCD predictions is the uncertainty in
determining the renormalization scale μ of the running coupling α s (μ 2). The purpose of the …

We review the present understanding of the spin structure of protons and neutrons, the
fundamental building blocks of nuclei collectively known as nucleons. The field of nucleon …