# Detecting Nanometer-Scale New Forces with Coherent Neutron Scattering

### APA

Bogorad, Z. (2023). Detecting Nanometer-Scale New Forces with Coherent Neutron Scattering. Perimeter Institute. https://pirsa.org/23110059

### MLA

Bogorad, Zachary. Detecting Nanometer-Scale New Forces with Coherent Neutron Scattering. Perimeter Institute, Nov. 14, 2023, https://pirsa.org/23110059

### BibTex

@misc{ pirsa_PIRSA:23110059, doi = {10.48660/23110059}, url = {https://pirsa.org/23110059}, author = {Bogorad, Zachary}, keywords = {Particle Physics}, language = {en}, title = {Detecting Nanometer-Scale New Forces with Coherent Neutron Scattering}, publisher = {Perimeter Institute}, year = {2023}, month = {nov}, note = {PIRSA:23110059 see, \url{https://pirsa.org}} }

Zachary Bogorad Stanford University

## Abstract

Significant effort has been devoted to searching for new fundamental forces of nature. At short length scales (below approximately 10 nm), many of the strongest experimental constraints come from neutron scattering from individual nuclei in gases. The leading experiments at longer length scales instead measure forces between macroscopic test masses. I will present a proposal that combines these two approaches: scattering neutrons off of a target that has spatial structure at nanoscopic length scales. Such structures will give a coherent enhancement to small-angle scattering, where the new force is most significant. This can considerably improve the sensitivity of neutron scattering experiments for new forces in the 0.1 - 100 nm range. I will discuss the backgrounds due to Standard Model interactions and a variety of potential target structures that could be used, estimating the resulting sensitivities. I will show that, using only one day of beam time at a modern neutron scattering facility, our proposal has the potential to detect new forces as much as four orders of magnitude beyond current laboratory constraints at the appropriate length scales.

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Zoom link https://pitp.zoom.us/j/98201041537?pwd=MS9weFpNcHVFTVIwMTVoYmpxeTd6Zz09