Publisher's Note: Comment on 'Limits on possible new nucleon monopole-dipole interactions from the spin relaxation rate of polarized {sup 3}He gas' [Phys. Rev. D 84, 058501 (2011)]
No abstract prepared.
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗
Engineering topics
Pignol, G
Publications and source records attributed to Pignol, G.
The GRANIT spectrometer
The existence of quantum states of matter in a gravitational field was demonstrated recently in the Institut Laue-Langevin (ILL), Grenoble, in a series of experiments with ultra cold neutrons (UCN). UCN in low quantum states is an excellent probe for fundamental physics, in particular for constraining extra short-range forces; as well as a tool in quantum optics and surface physics. The GRANIT is a follow-up project based on a second-generation spectrometer with ultra-high energy resolution, permanently installed in ILL. It has been constructed in framework of an ANR grant; and will become operational in 2011.
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗
Short-range Fundamental forces
We consider theoretical motivations to search for extra short-range fundamental forces as well as experiments constraining their parameters. The forces could be of two types: (1) spin-independent forces; and (2) spin-dependent axion-like forces. Different experimental techniques are sensitive in respective ranges of characteristic distances. The techniques include measurements of gravity at short distances, searches for extra interactions on top of the Casimir force, precision atomic and neutron experiments. We focus on neutron constraints, thus the range of characteristic distances considered here corresponds to the range accessible for neutron experiments.
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗