Two-body photodisintegration of the deuteron at intermediate energy

Author: Belz, J. Eric

Year: 1994

Degree: Dissertation (Ph.D.)

Advisor: McKeown, Robert D.

Committee Member: Unknown, Unknown

Option: Physics

DOI: 10.7907/pvgg-3b23

Abstract

We have measured the differential cross section for two-body deuteron photodisintegration at center-of-mass angles of 90°, 53° and 37° with photon energies from 1.6 Ge V to 2.8 Ge V. Additional data were taken at θ* = 37° and E_γ = 4.2 GeV. Invariant cross sections at θ* =90° and 53° appear to follow a simple scaling law predicted by constituent counting rules of perturbative QCD, while the cross section at θ* = 37° shows a slower fall-off with photon energy. Angular distributions show increasing forward peaking at higher energies. Agreement with various theoretical predictions based on pQCD and meson-exchange models is discussed.

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