Proton's width measured to unparalleled precision, narrowing the path to new physics
Mander - An instance dedicated to nature and science. [Unoffici…
February 17, 2026
submitted by misk to science
63 points | 7 comments
https://phys.org/news/2026-02-proton-width-unparalleled-precision-narrowing.html
Source paper: Sub-part-per-trillion test of the Standard Model with atomic hydrogen
Discussion in the ATmosphere