Quantum chromodynamics in few nucleon systems

A Study of Nucleon Spin Structure from Quantum Chromodynamics

Signatures of three-nucleon interactions in few-nucleon systems.

Recent experimental results in three-body systems have unambiguously shown that calculations based only on nucleon-nucleon forces fail to accurately describe many experimental observables and one needs to include effects which are beyond the realm of the two-body potentials. This conclusion owes its significance to the fact that experiments and calculations can both be performed with high accur...

Electroweak Processes in Few-nucleon Systems * †

After a brief introduction into the basic ingredients of electroweak theory as a spontaneously broken local, non-Abelian gauge symmetry, the general properties of the electromagnetic current and two-photon operators are discussed. In particular, the consequences of gauge invariance and the resulting low energy theorems are reviewed. The multipole decomposition of the current operators and the g...

Chiral dynamics in few–nucleon systems

We report on recent progress achieved in calculating various few–nucleon low–energy observables from effective field theory. Our discussion includes scattering and bound states in the 2N, 3N and 4N systems and isospin violating effects in the 2N system. We also establish a link between the nucleon–nucleon potential derived in chiral effective field theory and various modern high–precision poten...

Chiral dynamics of few-nucleon systems

I discuss some recent developments in chiral effective field theory for few-nucleon systems.