Abstract
We investigate heavy quark symmetries for heavy meson hadronic molecules, and explore the consequences of assuming the X(3872) and Zb(10610) as an isoscalar DD̄* and an isovector BB̄* hadronic molecules, respectively. The symmetry allows to predict new hadronic molecules, in particular we find an isoscalar 1++ BB̄* bound state with a mass about 10580 MeV and the isovector charmonium partners of the Zb(10610) and the Zb(10650) states. Next, we study the X(3872) → D0D̄0π0 three body decay. This decay mode is more sensitive to the long-distance structure of the X(3872) resonance than its J/ψππ and J/ψ3π decays, which are mainly controlled by the short distance part of the X (3872) molecular wave function. We discuss the D0D̄0 final state interactions, which in some situations become quite important. Indeed in these cases, a precise measurement of this partial decay width could provide precise information on the interaction strength between the D(*)D̄(*) charm mesons.
Highlights
Heavy hadron molecules are a type of exotic hadron theorized more than thirty years ago [1, 2]
Heavy quark spin symmetry (HQSS) implies that molecular states may appear in heavy quark spin symmetry (HQSS) multiplets
From heavy flavor symmetry (HFS), we know that the interaction among heavy hadrons is roughly independent on whether they contain a charm or a bottom quark
Summary
Heavy hadron molecules are a type of exotic hadron theorized more than thirty years ago [1, 2]. 1. Heavy quark symmetries and hidden charm meson molecules Heavy quark spin symmetry (HQSS) implies that molecular states may appear in HQSS multiplets.
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