Neutrinos

229 pages229 pages229 pagesThe Proceedings of the 2011 workshop on Fundamental Physics at the Intensity Frontier. Science opportunities at the intensity frontier are identified and described in the areas of heavy quarks, charged leptons, neutrinos, proton decay, new light weakly-coupled particles, and nucleons, nuclei, and atoms

Precision measurements of the nucleon strange form factors at Q(2)similar to 0.1 GeV2 RID A-2969-2011

We report new measurements of the parity-violating asymmetry APV in elastic scattering of 3 GeV electrons off hydrogen and 4He targets with h-lab=6deg. The 4He result is APV=(+6.40+-0.23stat+0.04syst)x10**6. The hydrogen result is APV= (1.58+-0.12stat+-0.04syst)*10**6. These results significantly improve constraints on the electric and magnetic strange form factors GsE and GsM. We extract GsE=0.002+-0.014+-0.007 at Q**2=0.077 GeV2, and GsE+0.09GsM=0.007+-0.011+-0.006 at Q2=0.109 GeV2, providing new limits on the role of strange quarks in the nucleon charge and magnetization distributions

Precision measurements of the nucleon strange form factors at Q(2)similar to 0.1 GeV2

We report new measurements of the parity-violating asymmetry A(PV) in elastic scattering of 3 GeV electrons off hydrogen and 4He targets with approximately 6.0 degrees . The 4He result is A(PV)=(+6.40+/-0.23(stat)+/-0.12(syst))x10(-6). The hydrogen result is A(PV)=(-1.58+/-0.12(stat)+/-0.04(syst))x10(-6). These results significantly improve constraints on the electric and magnetic strange form factors G(E)(s) and G(M)(s). We extract G(E)(s)=0.002+/-0.014+/-0.007 at =0.077 GeV2, and G(E)(s)+0.09G(M)(s)=0.007+/-0.011+/-0.006 at =0.109 GeV2, providing new limits on the role of strange quarks in the nucleon charge and magnetization distributions