We have measured the degree of parity violation in scattering of electrons on deuterons and determined the electroweak coupling constants C1u, C1d, C2u and C2d.
COBISS.SI-ID: 2639204
We report on parity-violating asymmetries in the nucleon resonance region measured using inclusive inelastic scattering of 5-6 GeV longitudinally polarized electrons off an unpolarized deuterium target. These results are the first parity-violating asymmetry data in the resonance region beyond the $\Delta$ (1232). They provide a verification of quark-hadron duality - the equivalence of the quark- and hadron-based pictures of the nucleon.
COBISS.SI-ID: 2614372
By measuring the process of electron scattering on protons in which there is a small parity-violating contribution we have determined a new precision limit on the strange vector form factors of the proton
COBISS.SI-ID: 2414180
By using electron scattering on tantalum targets we have measured the electroproduction cross section for electron positron pairs, which might be produced in the decay of a hypothetical A' particle that mediates the interaction between ordinary and dark matter.
COBISS.SI-ID: 2336100
In this Letter, we report new measurements of the proton electromagnetic form factor ratio using the recoil polarization method, at momentum transfers Q2=5.2, 6.7, and 8.5 GeV2. By extending the range of Q2 for which GEp is accurately determined by more than 50%, these measurements will provide significant constraints on models of nucleon structure in the nonperturbative regime.
COBISS.SI-ID: 2252132