We describe the research and development work for the P2 experiment which aims for a
high precision determination of the weak mixing angle \sin^2W sin 2 θ W to a precision of …

The symmetry energy describes how the energy of nuclear matter rises as one goes away
from equal numbers of neutrons and protons. This is very important to describe neutron rich …

Large experimental programmes in the fields of nuclear and particle physics search for
evidence of physics beyond that explained by current theories. The observation of the Higgs …

The Lagrangian that defines quantum chromodynamics (QCD), the strong interaction piece
of the Standard Model, appears very simple. Nevertheless, it is responsible for an …

We determine the nucleon electromagnetic form factors and their uncertainties from world
electron scattering data. The analysis incorporates two-photon exchange corrections …

As a follow up of our work on the electromagnetic four-current, we study for the first time the
relativistic polarization and magnetization spatial distributions inside a spin-1 2 target within …

We use distorted wave electron scattering calculations to extract the weak charge form factor
FW (q¯), the weak charge radius RW, and the point neutron radius R n of 208 Pb from the …

We review the role of two-photon exchange (TPE) in electron–hadron scattering, focusing in
particular on hadronic frameworks suitable for describing the low and moderate Q2 region …

We report new measurements of the parity-violating asymmetry A PV in elastic scattering of
3 GeV electrons off hydrogen and He 4 targets with⟨ θ lab⟩≈ 6.0°. The He 4 result is A …

The Q weak experiment has measured the parity-violating asymmetry in e→ p elastic
scattering at Q 2= 0.025 (GeV/c) 2, employing 145 μ A of 89% longitudinally polarized …