Ahn, J.K.
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An accurate determination of the total pair production cross section in carbon, aluminium, copper and lead for photons from 1.200 to 4.050 GeV

Knasel, T.M. ; Walker, J.K. ;
Phys.Lett.B 27 (1968) 103-105, 1968.
Inspire Record 1389649 DOI 10.17182/hepdata.29227

The total pair production cross section for photons of energies 1.200 to 4.050 GeV has been measured for targets of carbon, aluminium, copper and lead by a good geometry absorption technique. The accuracy of the work is ± 0.3%.

1 data table
Table 1

The errors are the sum in quadrature of the statistical and systematical errors.