DAPNIA is closely involved in studying the structure of nucleons (i.e. neutrons or protons) and describing them in terms of their components, which are known as quarks and gluons. Its teams are helping to solve fundamental questions as to how these components define the quantum numbers which characterise nucleons and are investigating the contribution of strange quarks to electromagnetic structure, as well as the part played by gluons in nucleon spin structure. The recent concept of generalised parton distribution, which should open the way to a 3D description of nucleons, announces the dawning of a new era. DAPNIA contributes actively to this progress through its theoretical and experimental work.
last update : 10-18 00:00:00-2005 (597)
The pion, predicted by Yukawa in 1935 and discovered in 1947, was the first of a family of particles called mesons: a family that has continued to grow ever since. Ordinary mesons consist of a quark and an antiquark. The theory of strong interaction also predicts the existence of more ... More »
A team of physicists, engineers and technicians from IRFU are developing a new generation of MicroMegas trackers. The planned Compass II experiment at CERN, together with the Clas12 experiment at the Jefferson Lab, will impose new operational constraints preventing the current generation of ... More »