Chi(c) decays and the gluon component of the eta', eta mesons

The large mass of the η′meson indicates that a sizeable gluon component is present in the meson wave function. However, the χc0and χc2decays to η′mesons, which proceed via a purely gluonic intermediate state and we would therefore naïvely expect to be enhanced by such a component, are in fact relati...

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Váldodahkkit: Harland-Lang, LA, Khoze, VA, Ryskin, MG, Shuvaev, AG
Materiálatiipa: Journal article
Almmustuhtton: Elsevier 2017