$Z_b(10610)$ and $Z_b(10650)$ structures produced by the initial single pion emission in the ${\rm Y}(5S)$ decays

Abstract

We propose an unique mechanism called {\it Initial Single Pion Emission} existing in the ${\rm Y}(5S)$ decays, and further study the line shapes of $d\Gamma ({\rm Y}(5S\to {\rm Y}(nS){\pi }^{+}{\pi }^{-}))/d{m}_{{\rm Y}(nS){\pi }^{+}}$ ($n=1,2,3$) and $d\Gamma ({\rm Y}(5S\to h_b(mP){\pi }^{+}{\pi }^{-}))/d{m}_{h_b(mP){\pi }^{+}}$ ($m=1,2$). We find sharp structures around 10610 MeV and 10650 MeV in the obtained theoretical line shapes of $d\Gamma ({\rm Y}(5S\to {\rm Y}(nS){\pi }^{+}{\pi }^{-}))/d{m}_{{\rm Y}(nS){\pi }^{+}}$ and $d\Gamma ({\rm Y}(5S\to h_b(mP){\pi }^{+}{\pi }^{-}))/d{m}_{h_b(mP){\pi }^{+}}$ distributions, which could naturally correspond to the $Z_b(10610)$ and $Z_b(10650)$ structures newly observed by Belle.

5 pages, 4 figures. More discussions added. Accepted by Phys. Rev. D

References in corpus (10)

• Heavy quark spin structure in Z_b resonances
• X(3872) and Other Possible Heavy Molecular States
• Is X(3872) {\sl Really} a Molecular State?
• $Z_b(10610{)}^{\pm }$ and $Z_b(10650{)}^{\pm }$ as the $B^{\ast }\bar{B}$ and $B^{\ast }{\bar{B}}^{\ast }$ molecular states
• Observation of anomalous Upsilon(1S)pi+pi- and Upsilon(2S)pi+pi- production near the Upsilon(5S) resonance
• The Vector and Axial-Vector Charmonium-like States
• An explanation of Belle states Z_b(10610) and Z_b(10650)
• Deriving the existence of $B{\bar{B}}^{\ast }$ bound states from the X(3872) and Heavy Quark Symmetry
• Charged bottomonium-like states $Z_b(10610)$ and $Z_b(10650)$ and the ${\rm Y}(5S)\to {\rm Y}(2S){\pi }^{+}{\pi }^{-}$ decay
• Dipion invariant mass distribution of the anomalous ${\rm Y}(1S){\pi }^{+}{\pi }^{-}$ and ${\rm Y}(2S){\pi }^{+}{\pi }^{-}$ production near the peak of ${\rm Y}(10860)$

Cited by in corpus (73)

• Hadronic molecules
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• Heavy-Quark QCD Exotica
• QCD and strongly coupled gauge theories: challenges and perspectives
• Exotic Hadrons with Heavy Flavors -X, Y, Z and Related States-
• Decoding the riddle of Y(4260) and $Z_c(3900)$
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• An overview of $XYZ$ new particles
• Explaining the Many Threshold Structures in the Heavy-Quark Hadron Spectrum
• Could the near-threshold $XYZ$ states be simply kinematic effects?
• Reproducing the $Z_c(3900)$ structure through the initial-single-pion-emission mechanism
• Exploring the threshold behavior and implications on the nature of Y(4260) and $Z_c(3900)$
• Study of e+e- => B(*) B(*)-bar pi+- at sqrt(s)=10.866 GeV
• Amplitude analysis of e+e- => Y(nS)pi+pi- at sqrt(s)=10.865 GeV
• Predictions of charged charmonium-like structures with hidden-charm and open-strange channels
• Exotic mesons with hidden bottom near thresholds
• Decays of Zb(+) and Zb'(+) as hadronic molecules
• Study of the $B{\bar{B}}^{\ast }/D{\bar{D}}^{\ast }$ bound states in a Bethe-Salpeter approach
• Study of $B{\bar{B}}^{\ast }$ and $B^{\ast }{\bar{B}}^{\ast }$ interactions in $I=1$ and relationship to the $Z_b(10610)$, $Z_b(10650)$ states
• General considerations on the nature of $Z_b(10610)$ and $Z_b(10650)$ from their pole positions
• More hidden heavy quarkonium molecules and their discovery decay modes
• Charged charmonium-like Z+(4430) from rescattering in conventional B decays
• Dalitz plot distributions in presence of triangle singularities
• Investigating different structures of the Z_{b}(10610) and Z_{b}(10650)
• Radiative decays of the neutral $Z_c(3900)$
• Charged charmoniumlike state $Z_c(3900{)}^{\pm }$ via meson photoproduction
• How to understand the underlying structures of $X(4140)$, $X(4274)$, $X(4500)$ and $X(4700)$
• Line shapes in Υ(5S) \to B^{(*)} \bar{B}^{(*)}πwith Z(10610) and Z(10650) using effective field theory
• Two charged strangeonium-like structures observable in the $Y(2175)\to \varphi (1020){\pi }^{+}{\pi }^{-}$ process
• Explaining the anomalous ${\rm Y}(5S)\to {\chi }_{bJ}\omega$ decays through the hadronic loop effect
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• Resolving the puzzling decay patterns of charged $Z_c$ and $Z_b$ states
• Correlation of the hidden-charm molecular tetraquarks and the charmoniumlike structures existing in the $B\to XYZ+K$
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• Prediction of anomalous ${\rm Y}(5S)\to {\rm Y}(1^3{D}_J)\eta$ transitions
• Novel charged charmoniumlike structures in the hidden-charm dipion decays of Y(4360)
• Interpretation of $Z_b(10610)$ and $Z_b(10650)$ in the ISPE mechanism and the Charmonium Counterpart
• Generating a resonance-like structure in the reaction $B_c\to B_s\pi \pi$
• Hunting for the $X_b$ via hidden bottomonium decays
• Fully Heavy Tetraquark $bb\bar{c}\bar{c}$: Lifetimes and Weak Decays
• Magnetic dipole moment of $Z_b(10610)$ in light-cone QCD
• Spectroscopic parameters and decays of the resonance $Z_b(10610)$
• Exploring the ${\rm Y}(6S)\to {\chi }_{bJ}\varphi$ and ${\rm Y}(6S)\to {\chi }_{bJ}\omega$ hidden-bottom hadronic transitions
• Searching for charmoniumlike states with hidden $s\bar{s}$
• Weak Decays of Triply Heavy Tetraquarks $b\bar{c}b\bar{q}$
• Potential observation of the ${\rm Y}(6S)\to {\rm Y}(1^3{D}_J)\eta$ transitions at Belle II
• The impact of $S$-wave thresholds $D_{s1}{\bar{D}}_s+c.c.$ and $D_{s0}{\bar{D}}_s^{\ast }+c.c.$ on vector charmonium spectrum
• Production of $Z_{cs}$ in $B$ and $B_s$ decay
• Predicted $\Lambda \bar{\Lambda }$ and ${\Xi }^{-}{\bar{\Xi }}^{+}$ decay modes of the charmoniumlike $Y(4230)$
• Exploring the ${\rm Y}(4S,5S,6S)\to h_b(1P)\eta$ hidden-bottom hadronic transitions
• Proposal of searching for the ${\rm Y}(6S)$ hadronic decays into ${\rm Y}(nS)$ plus ${\eta }^{(\prime )}$
• Possible hadronic molecular states composed of $S$-wave heavy-light mesons
• Weak Decays of Doubly-Heavy Tetraquarks $b\bar{c}q\bar{q}$
• Simulating the charged charmoniumlike structure $Z_c(4025)$
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• Charged charmoniumlike structures in the $e^{+}{e}^{-}\to \psi (3686){\pi }^{+}{\pi }^{-}$ process based on the ISPE mechanism
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• Are there near-threshold Coulomb-like Baryonia?
• Study on the radiative decays of $h_c$ via intermediate meson loops model
• $D$ wave bottomonia production from $Z_b^{(\prime )}$ decay
• Evasion of HSR in the charmless decays of excited $P$-wave charmonia
• Charged bottomonium-like structures $Z_b(10610)$ and $Z_b(10650)$
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