Hard two-body photodisintegration of 3He

Phys Rev Lett. 2013 Jun 14;110(24):242301. doi: 10.1103/PhysRevLett.110.242301. Epub 2013 Jun 14.


We have measured cross sections for the γ(3)He → pd reaction at photon energies of 0.4-1.4 GeV and a center-of-mass angle of 90°. We observe dimensional scaling above 0.7 GeV at this center-of-mass angle. This is the first observation of dimensional scaling in the photodisintegration of a nucleus heavier than the deuteron.