6533b871fe1ef96bd12d1125
RESEARCH PRODUCT
Constraints on exotic spin-dependent interactions between electrons from helium fine-structure spectroscopy
Filip FicekNathan LeeferSzymon PustelnyDerek F. Jackson KimballDmitry BudkerDmitry BudkerDmitry BudkerMikhail Kozlovsubject
General PhysicsAtomic Physics (physics.atom-ph)FOS: Physical sciencesElectron01 natural sciencesphysics.atom-phMathematical SciencesPhysics - Atomic PhysicsHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesPhysics::Atomic Physics010306 general physicsSpin (physics)SpectroscopyAxionBosonPhysics010308 nuclear & particles physicsHigh Energy Physics::Phenomenologyhep-phPseudoscalarHigh Energy Physics - PhenomenologyExcited statePhysical SciencesChemical SciencesAtomic physicsEnergy (signal processing)description
Agreement between theoretical calculations of atomic structure and spectroscopic measurements is used to constrain possible contribution of exotic spin-dependent interactions between electrons to the energy differences between states in helium-4. In particular, constraints on dipole-dipole interactions associated with the exchange of pseudoscalar bosons (such as axions or axion-like particles) with masses ${10}^{\ensuremath{-}2}\ensuremath{\lesssim}m\ensuremath{\lesssim}{10}^{4}\mathrm{eV}$ are improved by a factor of $\ensuremath{\sim}100$. The first atomic-scale constraints on several exotic velocity-dependent dipole-dipole interactions are established as well.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-03-20 |