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• W2997190905 abstract "We provide a holographic description of nonstrange multiquark exotics as compact topological molecules by binding heavy-light mesons to a tunneling configuration in $mathrm{D}8text{ensuremath{-}}mathrm{D}overline{8}$ that is homotopic to the vacuum state with a fixed Chern-Simons number. In the tunneling process, the heavy-light mesons transmute to fermions. Their binding is generic and arises from a trade-off between the dipole attraction induced by the Chern-Simons term and the U(1) fermionic repulsion. In the heavy quark limit, the open-flavor tetraquark exotics $QQoverline{q}overline{q}$ and $overline{Q}overline{Q}qq$ emerge as bound Efimov states in a degenerate multiplet $I{J}^{ensuremath{pi}}=(0{0}^{+},0{1}^{+})$ with opposite intrinsic Chern-Simons numbers $ifmmodepmelsetextpmfi{}frac{1}{2}$. The hidden-flavor tetraquark exotics such as $Qoverline{Q}qoverline{q}$, $QQoverline{Q}overline{q}$, and $QQoverline{Q}overline{Q}$ as compact topological molecules are unbound. Other exotics are also discussed." @default.
• W2997190905 created "2020-01-10" @default.
• W2997190905 creator A5032801712 @default.
• W2997190905 creator A5053604957 @default.
• W2997190905 creator A5073910184 @default.
• W2997190905 date "2019-12-24" @default.
• W2997190905 modified "2023-09-23" @default.
• W2997190905 title "Heavy holographic exotics: Tetraquarks as Efimov states" @default.
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