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VOLUME 75 (2002) | ISSUE 1 | PAGE 7
On contribution of three-body forces to N!d interaction at intermediate energies
PACS: 24.70.+s, 24.50.+g, 21.45.+v
Abstract
Available data on large-angle nucleon-deuteron elastic scattering Nd→ dN below the pion threshold give a signal for three-body forces. There is a problem of separation of possible subtle aspects of these forces from off-shell effects in two-nucleon potentials. By considering the main mechanisms of the process Nd→ dN, we show qualitatively that in the quasi-binary reaction N+d→ (NN)+N with the final spin singlet nucleon-nucleon pair in the S-state the relative contribution of the three-nucleon forces differs substantially from the elastic channel. It gives a new testing ground for the problem in question.