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]

---

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, Vol. 1374, Issue 1; Conference: MENU 2010: 12. international conference on meson-nucleon physics and the structure of the nucleon, Williamsburg, VA (United States), 31 May - 4 Jun 2010; Other Information: DOI: 10.1063/1.3647214; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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