Photodisintegration of the deuteron in the few GeV region using asymptotic amplitudes
arXiv:nucl-th/9904058 · doi:10.1016/S0370-2693(99)00430-X
Abstract
Exclusive photodisintegration of the deuteron in the 1-4GeV range is described in terms of a simple covariant and gauge invariant approach using an effective counting rule as the hard part of the d-np vertex. At a scattering angle of theta_cm=90 degrees a prescaling behavior of the differential cross section proportional to 1/s^(n-2) with n ~ 12 is obtained; going away from 90 degrees the value of n decreases slowly, in qualitative agreement with the recent data.
10 pages, 3 figures, to appear in Physics Letters B
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