Elsevier

Nuclear Physics B

Volume 358, Issue 2, 15 July 1991, Pages 297-310
Nuclear Physics B

Energy dependence of the neutron-proton total cross section differences ΔσT and ΔσL between 0.31 and 1.1 GeV

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Abstract

Final results for total cross section differences ΔσT and ΔσL measured with a polarized neutron beam transmitted through a polarized proton target are presented. Measurements were carried out at SATURNE II, at 11 energies between 0.63 and 1.1 GeV for ΔσT and at 9 energies between 0.312 and 1.1 GeV for ΔσL. The results are compared with measurements at PSI and LAMPF as well as with ΔσL data points deduced from p-d and p-p transmission experiments at the ANL-ZGS. The present results together with the corresponding pp data allow to determine two of the three imaginary parts of forward scattering amplitudes for isospin I = 0.

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    Present address: LNS, CEN-Saclay, France.

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