Bottomonium dipion transitions

Abstract

Dipion transitions of the subthreshold bottomonium levels ${\rm Y}(nS)\to {\rm Y}(n^{\prime }S)\pi \pi$ with $n>n^{\prime },n=2,3,4,n^{\prime }=1,2$ are studied in the framework of the chiral decay Lagrangian, derived earlier. The channels $B\bar{B},B{\bar{B}}^{\ast }+c.c,B^{\ast }{\bar{B}}^{\ast }$ are considered in the intermediate state and realistic wave functions of ${\rm Y}(nS),B$ and $B^{\ast }$ are used in the overlap matrix elements. Imposing the Adler zero requirement on the transition matrix element, one obtains 2d and 1d dipion spectra in reasonable agreement with experiment.

34 pages, 18 figures

References in corpus (24)

• Field correlators in QCD. Theory and applications
• Coupled-channel model for charmonium levels and an option for X(3872)
• Scalar Resonance Contributions to the Dipion Transition Rates of ${\rm Y}(4S,5S)$ in the re-scattering model
• Psi(2S) -> pi^+ pi^- J/psi Decay Distributions
• Chiral Lagrangian with confinement from the QCD Lagrangian
• Observation of ${\rm Y}(4S)decaysto$π^+pi^-Υ(1S)$and$π^+pi^-Υ(2S)
• A relativistic chiral quark model for pseudoscalar emission from heavy mesons
• Study of Di-Pion Transitions Among Upsilon(3S), Upsilon(2S), and Upsilon(1S) States
• Heavy Quarkonium π^+π^- Transitions and a Possible b\bar{b}q\bar{q} State
• Strong decays and dipion transitions of Upsilon(5S)
• Di-Pion Decays of Heavy Quarkonium in the Field Correlator Method
• Observation of the decay Upsilon(4S) -> Upsilon(1S) pi+ pi-
• Two-pion transitions in quarkonium revisited
• The Hadronic Transitions $Upsilon(2S)\to Upsilon(1S)$
• Leptonic widths of high excitations in heavy quarkonia
• Final-state ππinteractions in Υ(3S)\rightarrowΥ(1S)ππ
• Analysis on Heavy Quarkonia Transitions with Pion Emission in Terms of the QCD Multipole Expansion and Determination of Mass Spectra of Hybrids
• The nature of the 'knee' in the cosmic ray energy spectrum
• Light sigma-Meson Production in Excited Upsilon Decay Processes I: Analyses
• Scalar Dipion States Produced in Heavy Quarkonium Decays and the Final State Interaction
• On the structure of the pi pi invariant mass spectra of the Upsilon(4S)-->Upsilon(1S,2S) pi^+ pi^- decays
• Is Upsilon(3S) a pure S-wave?
• ${\rm Y}$ Dipion Transitions at Energies Near the ${\rm Y}(4S)$
• Higher ${\eta }_c(nS)$ and ${\eta }_b(nS)$ mesons

Cited by in corpus (27)

• Heavy quarkonium: progress, puzzles, and opportunities
• Dynamical origin and the pole structure of X(3872)
• Hadron interaction with heavy quarkonia
• Channel coupling in heavy quarkonia: energy levels, mixing, widths and new states
• Charged bottomonium-like states $Z_b(10610)$ and $Z_b(10650)$ and the ${\rm Y}(5S)\to {\rm Y}(2S){\pi }^{+}{\pi }^{-}$ decay
• Study of the Dependence of Direct Soft Photon Production on the Jet Characteristics in Hadronic Z^0 Decays
• Strong decays and dipion transitions of Upsilon(5S)
• Prediction of anomalous ${\rm Y}(5S)\to {\rm Y}(1^3{D}_J)\eta$ transitions
• Relativistic theory of string breaking in QCD
• Hadron physics potential of future high-luminosity B-factories at the Upsilon(5S) and above
• Exploring the ${\rm Y}(6S)\to {\chi }_{bJ}\varphi$ and ${\rm Y}(6S)\to {\chi }_{bJ}\omega$ hidden-bottom hadronic transitions
• Potential observation of the ${\rm Y}(6S)\to {\rm Y}(1^3{D}_J)\eta$ transitions at Belle II
• Anomalous dipion invariant mass distribution of the ${\rm Y}(4S)$ decays into ${\rm Y}(1S){\pi }^{+}{\pi }^{-}$ and ${\rm Y}(2S){\pi }^{+}{\pi }^{-}$
• Chiral Lagrangian and chiral quark model from confinement in QCD
• Proposal of searching for the ${\rm Y}(6S)$ hadronic decays into ${\rm Y}(nS)$ plus ${\eta }^{(\prime )}$
• Detecting the polarization in ${\chi }_{cJ}\to \varphi \varphi$ decays to probe hadronic loop effect
• Nonperturbative approach to the parton model
• Hindered magnetic dipole transitions between P-wave bottomonia and coupled-channel effects
• Predictions of ${\rm Y}(4S)\to h_b(1P,2P){\pi }^{+}{\pi }^{-}$ transitions
• Role of multichannel pi pi scattering in decays of bottomia
• Analysis of the decays ${\psi }^{\prime }\to J/\psi {\pi }^{+}{\pi }^{-}$ and ${\eta }_c^{\prime }\to {\eta }_c{\pi }^{+}{\pi }^{-}$ with the heavy quark symmetry
• Unified description of BaBar and Belle data on the bottomonia decays Upsilon(mS) -> Upsilon(nS) pi+ pi-
• Effect of the $K\overline{K}$ and $\eta \eta$ channels and interference phenomena in the two-pion and $K\overline{K}$ transitions of charmonia and bottomonia
• Canonical interpretation of $Y(10750)$ and ${\rm Y}(10860)$ in the ${\rm Y}$ family
• Beauty Hadron Spectrum in a Screened Potential Model
• Effect of the $\eta \eta$ channel and interference phenomena in the two-pion transitions of charmonia and bottomonia
• Exotic hadrons associated with $b$-quark