Hadronic Physics
 | The hadronic weak interaction as a test of the strong force between hadrons Gericke,Page The Spallation Neutron Source (SNS), at Oak Ridge National Laboratory in Tennessee, is the world’s premier spallation neutron source. The SNS fundamental neutron physics program has a dedicated, DOE-funded, $10M beam line (the FNPB) which recently produced its first beam of cold neutrons at the expected intensity. There are two approved FNPB experiments that investigate the strong interaction between nucleons at low energy: NPDGamma and n3He. These experiments use cold neutrons, which have a kinetic energy between 2 and 15 meV, corresponding to a neutron speed of about 600 and 1700 meters per second respectively. |
 | The neutrons are allowed to capture on various targets and produce very small parity violating asymmetries. These asymmetries are used as a probe, to determine how much the Standard Model predicted weak interaction between quarks is modified by the strong interaction at low energy (i.e. within hadrons, meaning neutrons and protons) and is therefore an important parameter in determining the strength of the strong interaction at very low energies, where quarks form bound states of neutrons and protons. More information can be obtained here: Fundamental Physics With Cold Neutrons |
Neutron EDM experiment with ultra-cold neutrons at TRIUMF.
The G0 experiment at Jefferson Lab.
Measurement of the nuclear anapole moment in laser trapped francium at TRIUMF.