The omega to rho pi transition and omega to rho 3 pi decay

1999/02/15 by J. L Lucio, J. L. Lucio, Lucio, J. L +6
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9902349

12 pages, LaTeX, 3 eps figures, uses epsf.sty

arxiv created 1999/02/15 · openalex publication_date 1999/02/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We evaluate the omega to rho pi transition and the omega to 3 pi decay using a Quark Level Linear Sigma Model (QLσM). We obtain g^QLσM_ωρπ= (10.33 - 14.75) GeV^-1 to be compared with other model dependent estimates averaging to g_ωρπ = 16 GeV^-1. We show that in the QLσM a contact term is generated for the ω→ 3 π decay. Although the contact contribution by itself is small, the interference effects turn out to be important.

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