Coherent photon scattering cross-sections for helium near the delta resonance - INSPIRE

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Coherent photon scattering cross-sections for helium near the delta resonance

1991

7 pages

Published in:

Phys.Rev.C 43 (1991) 1525-1531

DOI:

10.1103/PhysRevC.43.1525

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Abstract: (APS)

The angular distributions for coherent photon scattering from He4 were measured at average laboratory bremsstrahlung energies of 187, 235, and 280 MeV. The experiment was performed at the Saskatchewan Accelerator Laboratory using the new high duty factor electron beam. The scattered photons were observed with a high-resolution NaI(Tl) total absorption scintillation detector. These measurements are intended to investigate modification of the Δ properties inside the nuclear medium and the treatment of nonresonant contributions to the scattering cross sections. The results are compared to theoretical calculations in the isobar-hole model. Clear deviations from the theory are evident at all energies, especially at 187 MeV.

photon nucleus: elastic scattering
elastic scattering: photon nucleus
photon nucleus: coherent interaction
coherent interaction: photon nucleus
helium
bremsstrahlung: beam
beam: bremsstrahlung
Delta(1232)
differential cross section: angular dependence
angular dependence: differential cross section

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Figures(0)

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