Bottomed Analog of Z+(4433)

Abstract

The newly observed $Z^{+}(4433)$ resonance by BELLE is believed to be a tetraquark bound state made up of $(cu)(\bar{c}\bar{d})$. We propose the bottomed analog of this bound state, namely, by replacing one of the charm quarks by a bottom quark, thus forming $Z_{bc}^{0,\pm ,\pm \pm }$. One of the $Z_{bc}$ is doubly charged. The predicted mass of $Z_{bc}$ is around 7.6 GeV. This doubly-charged bound state can be detected by its decay into $B_c^{\pm }{\pi }^{\pm }$. Similarly, we can also replace both charm quark and antiquark of the $Z^{+}(4433)$ by bottom quark and antiquark, respectively, thus forming $Z_{bb}$ the bottomonium analog of $Z^{+}(4433)$. The predicted mass of $Z_{bb}$ is about 10.7 GeV.

arXiv comment5 pages

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Cited by in corpus (21)

• Heavy quarkonium: progress, puzzles, and opportunities
• The hidden-charm pentaquark and tetraquark states
• Observation of the resonant character of the $Z(4430{)}^{-}$ state
• New Charmonium States in QCD Sum Rules: a Concise Review
• The Exotic XYZ Charmonium-like Mesons
• Is X(3872) {\sl Really} a Molecular State?
• An overview of $XYZ$ new particles
• Is Z^+(4430) a loosely bound molecular state?
• Analysis of the $Z(4430)$ as the first radial excitation of the $Z_c(3900)$
• $Z^{+}(4430)$ as a $D_1^{\prime }{D}^{\ast }$ ($D_1{D}^{\ast }$) molecular state
• The meson $Z^{+}(4430)$ as a tetraquark state
• A model-independent confirmation of the $Z(4430{)}^{-}$ state
• Hidden-charm and radiative decays of the Z(4430) as a hadronic D_1 \bar{D^\ast} bound state
• Partners of Z(4430) and Productions in B Decays
• ${\mathrm{Z}}^{+}(4430)$ and Analogous Heavy Flavor States
• Line Shapes of the Z(4430)
• Necessary and Sufficient Conditions for the Validity of Luttinger's Theorem
• Mass spectrum of the axial-vector hidden charmed and hidden bottom tetraquark states
• The two-body open charm decays of $Z^{+}(4430)$
• Recoupling Mechanism for exotic mesons and baryons
• The signal of $Z^{\pm }(4430)$ in nucleon-antinucleon scattering