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

Understand

p-3H and n-3He scattering in the energy range above the n-3He but below the d-d thresholds is studied by solving the 4-nucleon problem with a realistic nucleon-nucleon interaction.

• Three different methods -- Alt, Grassberger and Sandhas, Hyperspherical Harmonics, and Faddeev-Yakubovsky -- have been employed and their results for both elastic and charge-exchange processes are compared.
• We observe a good agreement between the three different methods, thus the obtained results may serve as a benchmark.
• A comparison with the available experimental data is also reported and discussed.