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arXiv · 1109.3625

Benchmark calculation of n-3H and p-3He scattering

M. Viviani·A. Deltuva·R. Lazauskas·J. Carbonell·A. C. Fonseca·A. Kievsky·L. E. Marcucci·S. Rosati
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Abstract

The n-3H and p-3He elastic phase-shifts below the trinucleon disintegration thresholds are calculated by solving the 4-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 and 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.

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M. Viviani, A. Deltuva, R. Lazauskas, J. Carbonell, A. C. Fonseca, A. Kievsky, L. E. Marcucci, S. Rosati. 2011-09-16. Benchmark calculation of n-3H and p-3He scattering. https://doi.org/10.1103/physrevc.84.054010

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