“What is now proved was once only imagined.” William Blake, Poet (1757-1827)
Monday, 11 June 2018
Weak proton charge
A team at the Thomas Jefferson National Accelerator
Facility has measured the weak charge of the proton by
scattering a beam of spin-polarized electrons from stationary protons in a
liquid hydrogen target. The value is 0.0719 ± 0.0045.