Kavli Affiliate: Yevgeny V. Stadnik
| First 5 Authors: Lei Cong, Wei Ji, Pavel Fadeev, Filip Ficek, Min Jiang
| Summary:
Novel interactions beyond the four known fundamental forces in nature
(electromagnetic, gravitational, strong and weak interactions), may arise due
to "new physics" beyond the standard model, manifesting as a "fifth force".
This review is focused on spin-dependent fifth forces mediated by exotic bosons
such as spin-0 axions and axionlike particles and spin-1 Z’ bosons, dark
photons, or paraphotons. Many of these exotic bosons are candidates to explain
the nature of dark matter and dark energy, and their interactions may violate
fundamental symmetries. Spin-dependent interactions between fermions mediated
by the exchange of exotic bosons have been investigated in a variety of
experiments, particularly at the low-energy frontier. Experimental methods and
tools used to search for exotic spin-dependent interactions, such as atomic
comagnetometers, torsion balances, nitrogen-vacancy spin sensors, and precision
atomic and molecular spectroscopy, are described. A complete set of interaction
potentials, derived based on quantum field theory with minimal assumptions and
characterized in terms of reduced coupling constants, are presented. A
comprehensive summary of existing experimental and observational constraints on
exotic spin-dependent interactions is given, illustrating the current research
landscape and promising directions of further research.
| Search Query: ArXiv Query: search_query=au:”Yevgeny V. Stadnik”&id_list=&start=0&max_results=3