2011/12/30 by Jon A. Bailey, Hyungjin Kim, Hyung-Jin Kim +2 · 5 citations
Physics and Astronomy · #Boson #Chiral anomaly #Chiral perturbation theory #Fermion #Flavor #Goldstone #Goldstone boson #High-Energy Particle Collisions Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Quark #Theoretical physics #hep-lat #hep-ph
paper · pdf · doi:10.1103/physrevd.85.094503
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 85(9) (American Physical Society) · 26 pages, 4 figures, 6 tables, typos are fixed and references are updated
arxiv created 2011/12/30 · openalex publication_date 2012/05/03 · arxiv updated 2013/05/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We calculate the masses of taste non-Goldstone pions and kaons in staggered chiral perturbation theory through next-to-leading order in the standard power counting. The results can be used to quantitatively understand taste violations in existing lattice data generated with staggered fermions and to extract the u, d, and s quark masses and Gasser-Leutwyler parameters from the experimentally observed spectrum. The expressions for the non-Goldstone masses contain low-energy couplings unique to the non-Goldstone sector. With two exceptions these enter as coefficients of analytic terms; all the new couplings can be fixed by performing spectrum calculations. We report one-loop results for the quenched case and the fully dynamical and partially quenched 1+1+1 and 2+1 flavor cases in the chiral SU(3) and SU(2) theories.