Document Type


Article Version

Publisher's PDF

Publication Date



We have measured the differential cross section for the γHe3→π+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 3He target. The differential cross sections for the γ3He→π+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.


Copyright American Physical Society Publisher final version available at

Publication Title

Physical Review C

Published Citation

R. Nasseripour et al. [CLAS Collaboration], "Coherent photoproduction of π+ from 3He," Physical Review C 83.3 (2011) DOI: 10.1103/PhysRevC.83.034001



Peer Reviewed