Wednesday, April 3, 2019, 2:30 pm — Small Seminar Room, Bldg. 510
We present lattice QCD calculation of nucleon axial and electromagnetic (up, down, strange and charm) form factors and discuss their impact on the understanding of neutrino-nucleon scattering. In a phenomenological study, using a combination of lattice QCD calculation of the strange-quark form factors, and MiniBooNE experimental neutrino scattering differential cross-section data in a limited kinematic regime, we obtain a precise determination of the weak axial form factor and of the corresponding neutral current weak-axial charge. We further show how a direct lattice QCD determination of neutral current weak-axial charge enable us to predict the BNL E734 data for the neutrino neutral current scattering differential cross section to high precision. We discuss how a direct lattice QCD calculation of neutrino-nucleon scattering cross sections can help to isolate nuclear effects in the neutrino-nucleus scattering.
Hosted by: Aaron Meyer
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