Constraints on exotic spin-dependent interactions between matter and antimatter from antiprotonic helium spectroscopy
Atomic Physics
2018-05-09 v1
Abstract
Heretofore undiscovered spin-0 or spin-1 bosons can mediate exotic spin-dependent interactions between standard-model particles. Here we carry out the first search for semileptonic spin-dependent interactions between matter and antimatter. We compare theoretical calculations and spectroscopic measurements of the hyperfine structure of antiprotonic helium to constrain exotic spin- and velocity-dependent interactions between electrons and antiprotons.
Keywords
Cite
@article{arxiv.1801.00491,
title = {Constraints on exotic spin-dependent interactions between matter and antimatter from antiprotonic helium spectroscopy},
author = {Filip Ficek and Pavel Fadeev and Victor V. Flambaum and Derek F. Jackson Kimball and Mikhail G. Kozlov and Yevgeny V. Stadnik and Dmitry Budker},
journal= {arXiv preprint arXiv:1801.00491},
year = {2018}
}
Comments
10 pages, 6 figures, 3 appendices