Once more about theKK¯molecule approach to the light scalars

2006/06/30 by N. N. Achasov, А. В. Киселев, A. V. Kiselev · 1 citation
Medicine · Physics and Astronomy · #Medical Imaging Techniques and Applications #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevd.76.077501

published as Phys.Rev.D76:077501,2007 · 6 pages, 3 figures,English improved,presentation improved

openalex publication_date 2007/10/18 · arxiv created 2007/10/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We show that the recent paper [Eur. Phys. J. A 24, 437 (2005)], claiming that the radiative decays \ensuremathφ\ensuremath→a₀(980)\ensuremathγ and \ensuremathφ\ensuremath→f₀(980)\ensuremathγ should be of the same order of magnitude regardless of whether the a₀(980) and f₀(980) are compact four-quark states or extended KK molecule states, is misleading.

Citations

• Once more about gauge invariance in ϕ → γπ 0 π 0

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