Published December 1, 1991
| Version v1
Journal article
πη scattering in QCD
Creators
- 1. Centre de Recherches Nucleaires et Universite Louis Pasteur de Strasbourg, Division de Physique Theorique, BP 20Cr, F-67037 Strasbourg Cedex (France)
- 2. Universitaet Bern, Institut fuer Theoretische Physik, Sidlerstr. 5, CH-3012 Bern (Switzerland)
Description
We evaluate the πη scattering amplitude at next-to-leading order in chiral perturbation theory. We discuss the conventional approach of the pseudoscalar Goldstone bosons (π,K,η) only and an extension including explicit resonance fields. The contributions of these resonances saturate the low-energy constants at order E4. We present predictions for the scattering lengths and phase shifts of the low partial waves
Additional details
Publishing Information
- Journal Title
- Physical Review, D
- Journal Volume
- 44
- Journal Issue
- 11
- Series
- Phys. Rev., D.
- Journal Page Range
- 3698-3701
- ISSN
- 0556-2821
- CODEN
- PRVDA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 23023581
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CHIRAL SYMMETRY; ELASTIC SCATTERING; GOLDSTONE BOSONS; HADRON-HADRON INTERACTIONS; PERTURBATION THEORY; PHASE SHIFT; PIONS; PSEUDOSCALAR MESONS; QUANTUM CHROMODYNAMICS; RENORMALIZATION; RESONANCE SCATTERING; SCATTERING AMPLITUDES; SU-3 GROUPS
- Descriptors DEC
- AMPLITUDES; BOSONS; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; INELASTIC SCATTERING; INTERACTIONS; LIE GROUPS; MESONS; PARTICLE INTERACTIONS; POSTULATED PARTICLES; QUANTUM FIELD THEORY; SCATTERING; SU GROUPS; SYMMETRY; SYMMETRY GROUPS