5 papers
Effective Field Theory Power Counting at Finite Density
James V. Steele
Effective field theory is applied to finite-density systems with an unnaturally large scattering length, such as neutron matter. A new organizational scheme is identified and conne…
Can Merons Describe Confinement?
James V. Steele
Merons, conjectured as a semiclassical mechanism for color confinement in QCD, are topological charge-1/2, singular solutions to the classical Yang-Mills equations of motion. I wil…
Convergence Issues in Nucleon-Nucleon Effective Field Theory
James V. Steele
The origin of the breakdown scale in an effective field theory treatment of nuclear forces is investigated. Different organizational schemes used in the nonperturbative calculation…
Comparison of Regularization Methods for Nucleon-Nucleon Effective Field Theory
James V. Steele
The characteristics of a meaningful effective field theory (EFT) analysis are discussed and compared with traditional approaches to NN scattering. A key feature of an EFT treatment…
The Pion-Nucleon Sigma Term and the Goldberger-Treiman Discrepancy
James V. Steele, Hidenaga Yamagishi, Ismail Zahed
The pion-nucleon sigma term is shown to be equal to the Goldberger-Treiman discrepancy at tree level. Its value estimated this way is very sensitive to the pion-nucleon coupling co…