2005/03/11 by Abdou Abdel-Rehim, Abdou M. Abdel-Rehim, Randy Lewis +1 · 2 citations
Mathematics · Physics and Astronomy · #Degenerate energy levels #Geometry #Hadron #High-Energy Particle Collisions Research #Lattice (music) #Lattice QCD #Mathematics #Multiplet #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Quark #Twist #hep-lat
paper · pdf · doi:10.1103/physrevd.71.094505
published as Phys.Rev. D71 (2005) 094505 · 23 pages, 16 figures, added discussion of pion decay constant
arxiv created 2005/03/11 · openalex publication_date 2005/05/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Hadron masses are computed from quenched twisted mass lattice QCD for a degenerate doublet of up and down quarks with the twist angle set to \ensuremathπ/2, since this maximally-twisted theory is expected to be free of linear discretization errors. Two separate definitions of the twist angle are used, and the hadron masses for these two cases are compared. The flavor breaking, that can arise due to twisting, is discussed in the context of mass splittings within the \ensuremathΔ(1232) multiplet.