We present the results of an absolute measurement of the photoabsorption cross section on Li, C, Al, Cu, Sn, and Pb between 300–1200 MeV. In the Δ region our results confirm that the strength is conserved, while in the higher resonances region they show a 7–15% damping and a possible mass-number dependence of the photoabsorption cross section.
Absolute total photoabsorption cross sections on nuclei in the nucleon resonance region
CORVISIERO, PIETRO;RICCO, GIOVANNI;SANZONE, MARCELLA;TAIUTI, MAURO GINO;
1994-01-01
Abstract
We present the results of an absolute measurement of the photoabsorption cross section on Li, C, Al, Cu, Sn, and Pb between 300–1200 MeV. In the Δ region our results confirm that the strength is conserved, while in the higher resonances region they show a 7–15% damping and a possible mass-number dependence of the photoabsorption cross section.
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