1997/03/31 by N. N. Achasov, A. A. Kozhevnikov
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.57.4334
published as Phys.Rev.D57:4334-4342,1998 · 16 pages, revtex, 6 ps figures. Clarifying remarks, a table, and references are added. Accepted in Phys. Rev. D
arxiv created 1998/01/20 · openalex publication_date 1998/04/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The analysis of the vector isoscalar excitations in the energy range between 1 and 2 GeV of the e+e^\ensuremath- annihilation is presented for the final states \ensuremathπ+\ensuremathπ^\ensuremath-\ensuremathπ0, \ensuremathω\ensuremathπ+\ensuremathπ^\ensuremath-, K+K^\ensuremath-, KS0K^\ifmmode±\else\textpm\fi\ensuremathπ^\ensuremath∓, and K*0K^\ensuremath-\ensuremathπ++c.c. The effects of both resonance mixing and the successive opening of multiparticle channels, with energy-dependent partial widths, are taken into account. The work extends our previous analysis of vector isovector excitations and is aimed at comparing the existing data with the predictions of the qq model. It is shown that this hypothesis does not contradict the data.