A Measurement of $F_2$ and $R=\sigma_L/\sigma_T$ on Nuclear targets in the Nucleon Resonance Region

ORAL

Abstract

Jefferson Lab Experiment E04-001 used the Rosenbluth technique to measure $R=\sigma_L/\sigma_T$ and $F_2$ on deuterium and nuclear targets. This experiment was part of a multilab effort[1] to investigate quark-hadron duality and the electromagnetic and weak structure of the nuclei in the resonance region. In addition to the studies of quark-hadron duality in electron scattering on nuclear targets, these data will be used as input form factors in future analysis of neutrino data which investigate quark-hadron duality of the nucleon and nuclear axial structure functions. An important goal of this experiment is to provide precise data which to allow a reduction in uncertainties in neutrino oscillation parameters for neutrino oscillation experiments (K2K, MINOS). This inclusive experiment was completed in July 2007 at Jefferson Lab where the Hall C High Momentum Spectrometer detected the scattered electron. Measurements were done in the nuclear resonance region ($1 < W^2 < 4 GeV^2$) spanning the four-momentum transfer range $0.5 < Q^2 < 4.0 (GeV^2)$. Data was collected from four nuclear targets: C, Al, Fe and Cu. After a brief presentation of the motivation of the experiment and its experimental and analysis details, the preliminary results will be presented. [1] Fermilab Minerva Experiment[http://minerva.fnal.gov/]

Authors

  • Vahe Mamyan

    University of Virginia