A NEW MEASUREMENT OF BEAM ASYMMETRY IN PION PHOTOPRODUCTION FROM THE NEUTRON USING CLAS

CLAS COLLABORATION, D. Sokhan, D. Watts, D. Branford, F. Klein

Research output: Contribution to journalArticlepeer-review

Abstract

We present a preliminary analysis of the photon beam asymmetry observable ( S) from the photoproduction reaction channel gamma n -> pi(-) p. This new data was obtained using the near-4 pi 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.

Original languageEnglish
Pages (from-to)497-500
Number of pages4
JournalInternational Journal of Modern Physics A
Volume24
Issue number2-3
DOIs
Publication statusPublished - 30 Jan 2009

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