publication . Article . Preprint . 2013

Reactions with pions and vector mesons in the sector of odd intrinsic parity

Bruno Strandberg; Fabian Eichstädt; Carla Terschlüsen; Stefan Leupold;
Open Access
  • Published: 06 May 2013 Journal: The European Physical Journal A, volume 49 (issn: 1434-6001, eissn: 1434-601X, Copyright policy)
  • Publisher: Springer Science and Business Media LLC
Abstract
The Wess-Zumino-Witten structure is supplemented by a simple vector-meson Lagrangian where the vector mesons are described by antisymmetric tensor fields. With the \( \rho\) -\( \omega\) -\( \pi\) coupling as the only parameter in the sector of odd intrinsic parity, i.e. without additional contact terms, one can achieve a proper description of the decay of an \( \omega\) -meson into three pions, the single- and double-virtual pion transition form factor and the three-pion production in electron-positron collisions.
Subjects
arXiv: High Energy Physics::ExperimentNuclear ExperimentHigh Energy Physics::LatticeNuclear TheoryHigh Energy Physics::Theory
free text keywords: Nuclear and High Energy Physics, High Energy Physics - Phenomenology, Intrinsic parity, Pion, Meson, Hadron, Physics, Antisymmetric tensor, Particle physics, Vector meson, Omega, Form factor (quantum field theory)
Funded by
EC| HADRONPHYSICS3
Project
HADRONPHYSICS3
Study of Strongly Interacting Matter
  • Funder: European Commission (EC)
  • Project Code: 283286
  • Funding stream: FP7 | SP4 | INFRA
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