Consistency of the {pi}{delta} interaction in chiral perturbation theory

Journal Article · Mon May 01 00:00:00 EDT 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.73.094012· OSTI ID:20782987

Wies, N; Scherer, S ^[1]; Gegelia, J ^[1]

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1. Institut fuer Kernphysik, Johannes Gutenberg-Universitaet, D-55099 Mainz (Germany)

We analyze the constraint structure of a spin-3/2 particle interacting with a pseudoscalar. Requiring the self consistency of the considered effective field theory imposes restrictions on the possible interaction terms. In the present case we derive two constraints among the three lowest-order {pi}{delta} interaction terms. From these constraints we find that the total Lagrangian is invariant under the so-called point transformation. On the other hand, demanding the invariance under the point transformation alone is less stringent and produces only classes of relations among the coupling constants.

• OSTI ID: 20782987
• Journal Information: Physical Review. D, Particles Fields, Vol. 73, Issue 9; Other Information: DOI: 10.1103/PhysRevD.73.094012; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
CHIRALITY
COUPLING CONSTANTS
DELTA BARYONS
LAGRANGIAN FIELD THEORY
LAGRANGIAN FUNCTION
MESON-BARYON INTERACTIONS
PERTURBATION THEORY
PIONS
SPIN
TRANSFORMATIONS