Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Pendellosung Interferometry Probes the Neutron Charge Radius, Lattice Dynamics, and Fifth Forces

Published

Author(s)

Benjamin J. Heacock, Robert W. Haun, Michael G. Huber, Albert Henins, Robert C. Valdillez, Takuhiro Fujiie, Katsuya Hirota, Masaaki Kitaguchi, Hirohiko Shimizu, Takuya Hosobata, Masahiro Takeda, Yutaka Yamagata

Abstract

Structure factors describe how incident radiation is scattered from materials such as silicon and germanium and characterize the physical interaction between the material and scattered particles. We used neutron Pendellösung interferometry to make precision measurements of the (220) and (400) neutron-silicon structure factors and achieved a factor-of-four improvement in the (111) structure factor uncertainty. These data provide measurements of the silicon Debye-Waller factor at room temperature and the mean square neutron charge radius ⟨r2n⟩=−0.1101±0.0089 square femtometers. Combined with existing measurements of the Debye-Waller factor and charge radius, the measured structure factors also improve constraints on the strength of a Yukawa modification to gravity by an order of magnitude over the 20 picometer–to–10 nanometer length scale range.
Citation
Science/AAAS
Volume
373
Issue
6560

Citation

Heacock, B. , Haun, R. , Huber, M. , Henins, A. , Valdillez, R. , Fujiie, T. , Hirota, K. , Kitaguchi, M. , Shimizu, H. , Hosobata, T. , Takeda, M. and Yamagata, Y. (2021), Pendellosung Interferometry Probes the Neutron Charge Radius, Lattice Dynamics, and Fifth Forces, Science/AAAS, [online], https://doi.org/10.1126/science.abc2794 (Accessed September 18, 2021)
Created September 10, 2021, Updated September 14, 2021