2007/05/23 by Oleg Antipin, Jusak Tandean, G. Valencia
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.76.094024
published as Phys.Rev.D76:094024,2007 · 12 pages, 5 figures
arxiv created 2007/05/23 · openalex publication_date 2007/11/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We study the decay \ensuremathΩ^\ensuremath-\ensuremath→\ensuremathΞ^\ensuremath-\ensuremathπ+\ensuremathπ^\ensuremath- in heavy-baryon chiral perturbation theory. At leading order, the decay is completely dominated by the \ensuremathΞ*0(1530) intermediate state, and the predicted rate and \ensuremathΞ^\ensuremath-\ensuremathπ+-mass distribution are in conflict with currently available data. It is possible to resolve this conflict by considering additional contributions at next-to-leading order.