Benchmark calculation of n-3H and p-3He scattering
Abstract
The n-3H and p-3He elastic phase shifts below the trinucleon disintegration thresholds are calculated by solving the four-nucleon problem with three different realistic nucleon-nucleon interactions (the I-N3LO model by Entem and Machleidt, the Argonne v18 potential model, and a low-k model derived from the CD-Bonn potential). Three different methods—Alt-Grassberger-Sandhas, hyperspherical harmonics, and Faddeev-Yakubovsky—have been used and their respective results are compared. For both n-3H and p-3He we observe a rather good agreement between the three different theoretical methods. We also compare the theoretical predictions with the available experimental data, confirming the large underprediction of the p-3He analyzing power.
- Publication:
-
Physical Review C
- Pub Date:
- November 2011
- DOI:
- 10.1103/PhysRevC.84.054010
- arXiv:
- arXiv:1109.3625
- Bibcode:
- 2011PhRvC..84e4010V
- Keywords:
-
- 21.45.-v;
- 21.30.-x;
- 24.70.+s;
- 25.10.+s;
- Few-body systems;
- Nuclear forces;
- Polarization phenomena in reactions;
- Nuclear reactions involving few-nucleon systems;
- Nuclear Theory
- E-Print:
- 18 pages, 9 figures