Probing new light force-mediators by isotope shift spectroscopy
Abstract
In this Letter we explore the potential of probing new light force-carriers, with spin-independent couplings to the electron and the neutron, using precision isotope shift spectroscopy. We develop a formalism to interpret linear King plots as bounds on new physics with minimal theory inputs. We focus only on bounding the new physics contributions that can be calculated independently of the Standard Model nuclear effects. We apply our method to existing Ca+ data and project its sensitivity to possibly existing new bosons using narrow transitions in other atoms and ions (specifically, Sr and Yb). Future measurements are expected to improve the relative precision by five orders of magnitude, and can potentially lead to an unprecedented sensitivity for bosons within the 10 keV to 10 MeV mass range.
Cite
@article{arxiv.1704.05068,
title = {Probing new light force-mediators by isotope shift spectroscopy},
author = {Julian C. Berengut and Dmitry Budker and Cedric Delaunay and Victor V. Flambaum and Claudia Frugiuele and Elina Fuchs and Christophe Grojean and Roni Harnik and Roee Ozeri and Gilad Perez and Yotam Soreq},
journal= {arXiv preprint arXiv:1704.05068},
year = {2018}
}
Comments
6 pages, 1 figure