3 papers
nucl-th2025
On Two Nucleons Near Unitarity with Perturbative Pions
Yu Ping Teng, Harald W. Griesshammer
We explore the impact of perturbative pions on the Unitarity Expansion in the two-nucleon S-waves of Chiral Effective Field Theory at next-to-next-to leading order. Pion exchange e…
nucl-th2025
The Unitarity-Limit Expansion for Two Nucleons with Perturbative Pions: Digest and Ideas
Harald W. Griesshammer
In the Unitarity Limit, the NN S-wave binding energies are zero, the scattering lengths infinite, Physics is universal, i.e. insensitive to details of the interactions, and observa…
nucl-th2025
Scattering Observables from Few-Body Densities and Compton Scattering on 6Li
Alexander Long, Harald W. Griesshammer
The dynamics of scattering on light nuclei is numerically expensive using standard methods. Fortunately, recent developments allow one to factor the relevant quantities for a given…