ar X iv : n uc l - th / 9 70 60 77 v 1 2 7 Ju n 19 97 The Three - Nucleon System Near the N - d Threshold

Abstract

The three-nucleon system is studied at energies a few hundred keV above the N-d threshold. Measurements of the tensor analyzing powers T20 and T21 for p-d elastic scattering at Ec.m. = 432 keV are presented together with the corresponding theoretical predictions. The calculations are extended to very low energies since they are useful for extracting the p-d scattering lengths from the experimental data. The interaction considered here is the Argonne V18 potential plus the Urbana three-nucleon potential. The calculation of the asymptotic Dto S-state ratio for H and He, for which recent experimental results are available, is also presented. PACS numbers: 25.10+s,24.70.+s,21.45.+v key words: N-d scattering, polarization observables, effective range expansion, asymptotic constants

Cite this paper

@inproceedings{Kievsky2008arXI, title={ar X iv : n uc l - th / 9 70 60 77 v 1 2 7 Ju n 19 97 The Three - Nucleon System Near the N - d Threshold}, author={A . Kievsky and Sara Rosati and Massimo Viviani and C . R . Brune and H . J . Karwowski and E . J . Ludwig and Madeleine Wood}, year={2008} }