Abstract
We describe an experimental search for deviations from the inverse-square law of gravity at the nanometer length scale using neutron scattering from noble gases on a pulsed slow neutron beam line. By measuring the neutron momentum transfer () dependence of the differential cross section for xenon and helium and comparing to their well-known analytical forms, we place an upper bound on the strength of a new interaction as a function of interaction length which improves upon previous results in the region , and remains competitive in the larger- region. A pseudoexperimental simulation is developed for this experiment and its role in the data analysis is described. We conclude with plans for improving sensitivity in the larger- region.
1 More- Received 9 December 2017
DOI:https://doi.org/10.1103/PhysRevD.97.062002
© 2018 American Physical Society
Physics Subject Headings (PhySH)
Synopsis
Neutron Test for Newton’s Gravity
Published 22 March 2018
Experiments with neutrons search for violations of gravity’s inverse square law at subnanometer distances.
See more in Physics