Equivalence of light-front and covariant approaches in meson-baryon interactions

Journal Article · Mon Oct 24 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3647214· OSTI ID:21608463

Ji, Chueng-Ryong ^[1]; Melnitchouk, Wally ^[2]

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1. Department of Physics, Box 8202, North Carolina State University, Raleigh, North Carolina 27695-8202 (United States)
2. Jefferson Lab, 12000 Jefferson Avenue, Newport News, Virginia 23606 (United States)

We demonstrate the equivalence of the light-front, equal-time and covariant formulations in meson-baryon interactions. In particular, we discuss the self-energy {Sigma} of a nucleon dressed by pion loops with the pseudovector {pi}NN coupling. It is shown that the leading nonanalytic behavior of {Sigma} is equivalent whichever formulations are used for the derivation.

• OSTI ID: 21608463
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1374; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
COUPLING
ELEMENTARY PARTICLES
ENERGY
FERMIONS
FIELD THEORIES
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LIGHT CONE
MESON-BARYON INTERACTIONS
MESONS
NUCLEONS
PARTICLE INTERACTIONS
PERTURBATION THEORY
PIONS
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
RENORMALIZATION
SELF-ENERGY
SPACE-TIME