22 citations · 33 across the 2 of their papers we have counts for
3 papers
physics.atom-ph2022★ 11 cited
Three and four identical fermions near the unitary limit
Michael D. Higgins, Chris H. Greene
This work analyzes the three and four equal-mass fermionic systems near and at the - and -wave unitary limits using hyperspherical methods. The unitary regime addressed here…
nucl-th2020★ 22 cited
A Comprehensive Study of the Three- and Four-Neutron Systems at Low Energies
Michael D. Higgins, Chris H. Greene, Alejandro Kievsky +1
This work presents further analysis of the three- and four-neutron systems in the low energy regime using adiabatic hyperspherical methods. In our previous Phys. Rev. Lett. article…
physics.atom-ph2019
Low-Energy Scattering Properties of Ground-State and Excited-State Positronium Collisions
Michael D. Higgins, Kevin M. Daily, Chris H. Greene
Low-energy elastic and inelastic scattering in the Ps(1)-Ps(2) channel is treated in a four-body hyperspherical coordinate calculation. Adiabatic potentials are calculated fo…