arXiv:nucl-ex/9804002·v1·Nuclear Experiment
Possible three-nucleon force effects in D-P scattering at low energies
C. R. Brune🇺🇸 · W. H. Geist🇺🇸 · H. J. Karwowski🇺🇸 · E. J. Ludwig🇺🇸 · K. D. Veal🇺🇸 · M. H. Wood🇺🇸 · A. Kievsky🇮🇹 · S. Rosati🇮🇹 · M. Viviani🇮🇹
Abstract
We present measurements of the analyzing powers Ay and iT11 for proton-deuteron scattering at Ecm=432 keV. Calculations using a realistic nucleon-nucleon potential (Argonne V18) are found to underpredict both analyzing powers by 40. The inclusion of the Urbana three-nucleon interaction does not significantly modify the calculated analyzing powers. Due to its short range, it is difficult for this three-nucleon interaction to affect Ay and iT11 at this low energy. The origin of the discrepancy remains an open question.
Comments: 12 pages, Revtex, one figure, to be published in Phys. Lett. B