QCD rescattering and high energy two-body photodisintegration of the deuteron
Photon absorption by a quark in one nucleon followed by its high-momentum transfer interaction with a quark in the other may produce two final-state nucleons with high relative momentum. We sum the relevant quark rescattering diagrams to show that the scattering amplitude depends on a convolution between the large angle pn scattering amplitude, the hard photon-quark interaction vertex, and the low-momentum deuteron wave function. The computed absolute values of the cross section are in reasonable agreement with the data.
Frankfurt
LL
School of Physics and Astronomy, Tel Aviv University, Tel Aviv 79978, Israel.
Miller
GA
Sargsian
MM
Strikman
MI