253 citations · 5k across the 131 of their papers we have counts for
3 papers · 1 filter
Ginsparg-Wilson Pions Scattering in a Sea of Staggered Quarks
Jiunn-Wei Chen, Donal O'Connell, Ruth S. Van de Water +1
We calculate isospin 2 pion-pion scattering in chiral perturbation theory for a partially quenched, mixed action theory with Ginsparg-Wilson valence quarks and staggered sea quarks…
Nucleon and Delta masses in twisted mass chiral perturbation theory
Andre Walker-Loud, Jackson M. S. Wu
We calculate the masses of the nucleons and deltas in twisted mass heavy baryon chiral perturbation theory. We work to quadratic order in a power counting scheme in which we treat…
Strong Isospin Breaking in the Nucleon and Delta Masses on the Lattice
Brian C. Tiburzi, Andre Walker-Loud
Strong isospin breaking in the spectrum of the nucleons and deltas can be studied in lattice QCD with the help of chiral perturbation theory. At leading order in the chiral expansi…