6533b830fe1ef96bd1296651
RESEARCH PRODUCT
Probing Long-Range Neutrino-Mediated Forces with Atomic and Nuclear Spectroscopy.
Yevgeny V. Stadniksubject
PhysicsNuclear TheoryAtomic Physics (physics.atom-ph)010308 nuclear & particles physicsMuoniumBinding energyFOS: Physical sciencesGeneral Physics and AstronomyElectron01 natural sciencesCharged particlePhysics - Atomic PhysicsNuclear Theory (nucl-th)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Deuterium0103 physical sciencesNeutronPhysics::Atomic PhysicsAtomic physicsNeutrino010306 general physicsSpectroscopydescription
The exchange of a pair of low-mass neutrinos between electrons, protons and neutrons produces a "long-range" $1/r^5$ potential, which can be sought for in phenomena originating on the atomic and sub-atomic length scales. We calculate the effects of neutrino-pair exchange on transition and binding energies in atoms and nuclei. In the case of atomic s-wave states, there is a large enhancement of the induced energy shifts due to the lack of a centrifugal barrier and the highly singular nature of the neutrino-mediated potential. We derive limits on neutrino-mediated forces from measurements of the deuteron binding energy and transition energies in positronium, muonium, hydrogen and deuterium, as well as isotope-shift measurements in calcium ions. Our limits improve on existing constraints on neutrino-mediated forces from experiments that search for new macroscopic forces by 18 orders of magnitude. Future spectroscopy experiments have the potential to probe long-range forces mediated by the exchange of pairs of standard-model neutrinos and other weakly-charged particles.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-11-10 | Physical review letters |