Some Recent Developments in 5th Force Searches
Abstract
Recently we drew attention to the fact that most recent 5th force searches and tests of the weak equivalence principle (WEP) utilize only one or two pairs of test samples. We argue that, despite the great precision of these experiments, the lack of diversity of samples may mean they are unable to detect new composition-dependent forces, which requires the observation of a pattern in the data. Such a pattern was observed in the experiment by E\"{o}tv\"{o}s, Pek\'{a}r, and Fekete (EPF), the last high precision test of the WEP which used a significant number of different samples. We advocate for new experiments utilizing a sufficient number and range of samples to either confirm or refute the pattern found in the EPF experimental data.
Cite
@article{arxiv.2105.03264,
title = {Some Recent Developments in 5th Force Searches},
author = {Ephraim Fischbach and Dennis E. Krause and Megan H. McDuffie and Michael J. Mueterthies},
journal= {arXiv preprint arXiv:2105.03264},
year = {2021}
}
Comments
4 pages, 1 figure, uses moriond.cls, contribution to the 2021 Gravitation session of the 55th Rencontres de Moriond