Journal
PHYSICAL REVIEW C
Volume 79, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.79.012202
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Funding
- Department of Energy
- Office of Nuclear Physics [DE-AC02-06CH11357]
- Austrian Science Fund [W1203, P20496-N16, P20592-N16]
- Argonne National Laboratory's Computing Resource Center facilities
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We present a Poincare covariant Faddeev equation, which enables the simultaneous prediction of meson and baryon observables using the leading order in a truncation of the Dyson-Schwinger equations that can systematically be improved. The solution describes a nucleon's dressed-quark core. The evolution of the nucleon mass with current-quark mass is discussed. A nucleon-photon current, which can produce nucleon form factors with realistic Q(2) evolution, is described. Axial-vector diquark correlations lead to a neutron Dirac form factor that is negative, with r(1)(nu) > r(1)(nd). The proton electric-magnetic form factor ratio falls with increasing Q(2).
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