Mixed Heavy Quark Hybrid Mesons, Decay Puzzles, and RHIC

Abstract

We estimate the energy of the lowest Charmonium and Upsilon states with hybrid admixtures using the method of QCD Sum Rules. Our results show that the ${\Psi }^{\prime }(2S)$ and ${\rm Y}(3S)$ states both have about a 50% admixture of hybrid and meson components. From this we find explanations of both the famous $\rho -\pi$ puzzle for Charmonium, and the unusual pattern of $\sigma$ decays that have been found in ${\rm Y}$ decays. Moreover, this picture can be used for predictions of heavy quark production with the octet model for RHIC.

arXiv comment9 pages, 15 figures to be published in Physical Review D

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Cited by in corpus (22)

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• Leptonic and Digamma decay Properties of S-wave quarkonia states
• The Decay Properties of the 1^{-+} Hybrid State
• Upsilon Production In p-p Collisions at LHC
• Heavy Quark State Production In p-p Collisions
• The $\rho (1S,2S)$, $\psi (1S,2S)$, ${\rm Y}(1S,2S)$ and ${\psi }_t(1S,2S)$ mesons in a double pole QCD Sum Rule
• Heavy-quark state production in A-A collisions at $\sqrt{s}$=200 GeV
• Review of QCD, Quark-Gluon Plasma, Heavy Quark Hybrids, and Heavy Quark State production in p-p and A-A collisions
• The $\Lambda (1405)$ as a Hybrid
• $\Psi$ and ${\rm Y}$ Production In pp Collisions at 7.0 TeV
• Upsilon Production In pp Collisions For Forward Rapidities At LHC
• $\Psi$ and ${\rm Y}$ Production In pp Collisions at 8.0 TeV
• Nonperturbative approach to the parton model
• $\Psi (2S)$, ${\rm Y}(3S)$ Suppression in p-Pb, Pb-Pb Collisions and Mixed Hybrid Theory
• Review of QCD, QGP, Heavy Quark Meson Production Enhancement and Suppression
• $Z_c(3900)$ as a Four-Quark State
• $\Psi$ and ${\rm Y}$ Production in Proton-Proton Collisions at E=13 TeV
• Top Quark Mixed Hybrid Meson and the Quark-Gluon Plasma
• $J/\Psi$, $\Psi (2S)$ Production in pp Collisions at E=510 GeV
• $\Psi (2S)$ and ${\rm Y}(3S)$ Suppression in p-Pb 8 TeV Collisions and Mixed Heavy Quark Hybrid Mesons
• Chiral corrections to the $1^{-+}$ exotic meson mass
• Sigma and Pion Decays of Mixed Heavy Hybrids