Differential cross sections of elastic pd scattering in the energy range 10–70 GeV
Abstract
We present tables of the absolute differential cross sections of elastic pd scattering. The cross-section data have been obtained at the Serpukhov accelerator from 10 to 70 GeV in the |t|-range 0.002–0.2 GeV2/c2.
The elastic pd scattering amplitude was parametrised as
The values ,B and C are presented in these tables.
References (6)
- V.D. Bartenev et al.
PI-6246
(1972)V.D. Bartenev et al.Yad. Fiz.
(1972)V.D. Bartenev et al.Phys. Letters
(1972) - V.A. Nikitin et al.
Prib. Tekhn. Exp.
(1963) - V.D. Bartenev et al.V.D. Bartenev et al.
D-5805
(1970)
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