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تسجيل مستخدم جديدProbing the nature of Z_c states via the eta_c rho decay
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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 Z_c() -> eta_c rho decay using both approaches. Such channel might provide useful insights on the nature of the Z_c(), helping discriminating between the two different models.
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