Charged particle scattering in renormalizable pionless effective field theory at next-to-leading order: The , and cases
Matúš Rojik, Martin Schäfer, Mirko Bagnarol, and Nir Barnea
Phys. Rev. C 113, 024001 (2026) - Published 13 February, 2026
This work presents an extensive theoretical and numerical study of charged few-nucleon systems (, , and -He bound states and scattering) in the framework of pionless effective field theory (EFT) up to next-to-leading order (NLO). The authors treat the Coulomb interaction nonperturbatively, while NLO interactions, including three-body forces and a four-body force, are treated in perturbation theory. Special attention is given to renormalization issues. Only a mild cutoff dependence is seen, consistent with the expectations of power counting in pionless EFT. The results hold significant promise for - studies of charged-particle scattering at very low energies, with applications to reactions of astrophysical interest.
Di-nucleons do not form bound states at heavy pion mass
John Bulava, M. A. Clark, Arjun S. Gambhir, Andrew D. Hanlon, Ben Hörz, Bálint Joó, Christopher Körber, Ken McElvain, Aaron S. Meyer, Henry Monge-Camacho, Colin Morningstar, Joseph Moscoso, Amy Nicholson, Fernando Romero-López, Ermal Rrapaj, Andrea Shindler, Sarah Skinner, Pavlos M. Vranas, and André Walker-Loud (Baryon Scattering Collaboration)
Phys. Rev. C 113, 024002 (2026) - Published 17 February, 2026
Predicting the low-energy, two-nucleon () forces directly from quantum chromodynamics (QCD), the underlying theory of strong interactions, remains a challenge for theory. The authors present a high-statistics, technically sophisticated lattice QCD calculation of - and - scattering amplitudes at equal (heavy) pion and kaon masses of 714 MeV and find that deuteron and di-neutron bound states do not exist. The results help diagnose a long-standing disagreement in the literature regarding the methods used to determine the spectra and amplitudes with such calculations. The work represents a significant step toward deriving nuclear physics from first principles.
Novel variational-type method in quantum few-body theory
S. A. Rakityansky
Phys. Rev. C 113, 024003 (2026) - Published 17 February, 2026
Scattering phase shifts from overlap relations in the -matrix method
Calvin W. Johnson, Bui Minh Loc, Austin Keller, and Kenneth M. Nollett
Phys. Rev. C 113, 024004 (2026) - Published 17 February, 2026
, 3, 4 nuclear contact coefficients in the generalized contact formalism
E. Proietti, L. E. Marcucci, and M. Viviani
Phys. Rev. C 113, 024005 (2026) - Published 17 February, 2026






