Application of EFT at Thermal Energies

TL;DR

This paper applies pionless Effective Field Theory at thermal energies to evaluate observables in neutron-deuteron systems, incorporating three-body forces up to N$^2$LO, and compares results with experimental data and realistic potential models.

Contribution

It introduces the use of pionless EFT with three-body forces up to N$^2$LO for neutron-deuteron systems at thermal energies, providing a systematic theoretical approach.

Findings

Good agreement with experimental data

Consistent results with AV18/UrbIX potential models

Demonstrates effectiveness of EFT at low energies

Abstract

We have been evaluated some observables of n-d systems by using pionless Effective Field Theory(\EFTNoPion) and insertion of the three-body force up to next-to-next to leading order(N$^2$LO). The evaluated data has been compared with experimental and the three-nucleon calculation of the total cross section with modern realistic two- and three-nucleon forces AV18/UrbIX potential models calculations.