Document Type

Article

Department/Program

Physics

Journal Title

Physical Review C

Pub Date

2011

Volume

83

Issue

3

Abstract

We have measured the differential cross section for the gamma He-3 -> pi(+)t reaction. This reaction was studied using the Continuous Electron Beam Accelerator Facility (CEBAF) Large Acceptance Spectrometer (CLAS) at Jefferson Lab. Real photons produced with the Hall-B bremsstrahlung tagging system in the energy range from 0.50 to 1.55 GeV were incident on a cryogenic liquid He-3 target. The differential cross sections for the gamma He-3 -> pi(+)t reaction were measured as a function of photon-beam energy and pion-scattering angle. Theoretical predictions to date cannot explain the large cross sections except at backward angles, showing that additional components must be added to the model.

DOI

10.1103/PhysRevC.83.034001

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