Aspects of Three-Nucleon Systems in Pionless Effective Field*

Pionless effective field theory provides a systematic and model-independent way to study three-nucleon systems, such as neutron-deuteron scattering [1] and the triton [2], at very low momenta (p< m_π, where m_π ≈140 MeV is the pion mass). Calculations of observables at such low momenta are important to the study of big bang nucleosynthesis, some dark matter detection experiments, and some experiments at Triangle Universities Nuclear Laboratory/High Intensity Gamma-ray Source. In this talk, I will present some recent progress in these areas.

[1] P. F. Bedaque and U. van Kolck, Phys. Lett. B428, 221 (1998).

[2] J. Vanasse, Phys. Rev. C95, 024002 (2017).