The nature of the so-called XYZ states is a long-standing problem. It has been suggested that such particles may be described as compact four-quark states or loosely bound meson molecules. In the present work we analyze the Zc(′)→ηcρ decay using both approaches. Such channel might provide useful insights on the nature of the Zc(′) , helping discriminating between the two different models.
Probing the nature of Zc(') states via the ηc ρ decay / Esposito, A; Guerrieri, A. L.; Pilloni, Alessandro. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 746:(2015), pp. 194-201. [10.1016/j.physletb.2015.04.057]
Probing the nature of Zc(') states via the ηc ρ decay
Esposito, A;PILLONI, ALESSANDRO
2015
Abstract
The nature of the so-called XYZ states is a long-standing problem. It has been suggested that such particles may be described as compact four-quark states or loosely bound meson molecules. In the present work we analyze the Zc(′)→ηcρ decay using both approaches. Such channel might provide useful insights on the nature of the Zc(′) , helping discriminating between the two different models.File allegati a questo prodotto
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