Backward Elastic p3He Scattering at Energies 1 - 2 GeV

Details Backward Elastic p3He Scattering at Energies 1 - 2 GeV Backward Elastic p3He Scattering at Energies 1 - 2 GeV

1998-04-22

arxiv.org/abs/nucl-th/9804047v1

Nucl.Instrum.Meth. A402 (1998) 386-389

Physics

Nuclear Physics

Nuclear Theory

7 pages, Latex, 3 Postscript figures

Scientific paper

10.1016/S0168-9002(97)00868-1

The two-body transfer amplitude for the rearrangement process i+(jkl) - j+(ikl) is constructed on the basis of technique of 4-dimensional covariant nonrelativistic graphs. The developed formalism is applied to describing backward elastic $p^3He$ scattering in the energy range 0.5 - 1.7 GeV. Numerical calculations performed using the 5- channel wave function of the $^3He$ nucleus show that the transfer of a noninteracting np- pair dominates and explains satisfactorily the energy and angular dependence of the differential cross section at energies 0.9 - 1.7$ GeV. A weak sensitivity to high momentum components of the $~^3He$ wave function in spite of large momentum transfer as well as a very important role of rescatterings in the initial and final states are established.

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