Complete measurement of three-body photodisintegration of {sup 3}He for photon energies between 0.35 and 1.55 GeV

• Published in: Physical review. C, Nuclear physics Vol. 70; no. 6
• Main Authors: Niccolai, S., George Washington University, Washington, DC 20052, Audit, G., Laget, J.M., Marchand, C., Morand, L., Morrow, S.A., Sabatie, F., Berman, B.L., Strauch, S., Benmouna, N., Briscoe, W.J., Dhuga, K.S., Feldman, G., Heimberg, P., Ilieva, Y.Y., Juengst, H.G., Lima, A.C.S., Murphy, L.Y., O'Rielly, G.V., Philips, S.A.
• Format: Journal Article
• Language: English
• Published: United States 01-12-2004
• Subjects: CEBAF ACCELERATOR; CROSS SECTIONS; GEV RANGE; HELIUM 3; HELIUM 3 TARGET; MULTIPARTICLE SPECTROMETERS; NUCLEAR PHYSICS AND RADIATION PHYSICS; PHOTONS; PHOTONUCLEAR REACTIONS; PROTONS; THREE-BODY PROBLEM
• ISSN: 0556-2813; 1089-490X
• DOI: 10.1103/PhysRevC.70.064003

The three-body photodisintegration of {sup 3}He has been measured with the CLAS detector at Jefferson Lab, using tagged photons of energies between 0.35 GeV and 1.55 GeV. The large acceptance of the spectrometer allowed us for the first time to cover a wide momentum and angular range for the two outgoing protons. Three kinematic regions dominated by either two- or three-body contributions have been distinguished and analyzed. The measured cross sections have been compared with results of a theoretical model, which, in certain kinematic ranges, have been found to be in reasonable agreement with the data.