International Journal of Modern Physics A · 1991 · 44 citations · 0 references
Natural SciencesPhysicsNuclear PhysicsParticle PhysicsBaryon PhysicsElectroweak InteractionNuclear MassesStrong InteractionBaryon CorrelationsBaryon InteractionsBaryon MassesBaryon StructureBaryonic ProcessesOperator Product ExpansionQuantum Chromodynamics Sum Rules
The perturbative corrections of order α s to the coefficient functions of the operator product expansion for the baryonic correlator are calculated. These corrections change considerably the numerical values of the mass and residue for the proton extracted from the sum rules and improve the agreement between the theoretical estimates and experimental data.