A new measurement of Beam Asymmetry in Pion Photoproduction from the   Neutron using CLAS
  We present a preliminary analysis of the photon beam asymmetry observable (Sigma) from the photoproduction reaction channel gamma+ n -> p + pi-. This new data was obtained using the near-4pi CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Laboratory, USA, employing a linearly polarised photon beam with an energy range 1.1 - 2.3 GeV. The measurement will provide new data to address the poorly established neutron excitation spectrum and will greatly expand the sparse world data-set both in energy and angle. 
D. Sokhan, D. Watts, D. Branford, F. Klein (for the CLAS   Collaboration)