Fully-heavy pentaquark states

Abstract

Developing the calculation techniques to fivefold heavy hadrons, we perform the study of novel fully-heavy $QQQQ\bar{Q}$ pentaquark states by the QCD sum rule approach that is firmly based on the QCD basic theory. Numerically, masses of fully-heavy pentaquark states are calculated to be $7.41^{+0.27}_{-0.31}~\mbox{GeV}$ for $cccc\bar{c}$ and $21.60^{+0.73}_{-0.22}~\mbox{GeV}$ for $bbbb\bar{b}$, respectively. In experiment, these predicted all-heavy pentaquark states could be searched for in the ${\Omega }_{QQQ}{\eta }_Q$ invariant mass spectrum.

6 pages, 3 figures; version accepted for publication in Phys. Rev. D

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• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
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• Investigation of hidden-charm double strange pentaquark candidate $P_{css}$ via its mass and strong decays
• Analysis of the fully-heavy pentaquark states via the QCD sum rules
• Fully heavy pentaquark states in constituent quark model
• Triply-heavy tetraquarks in an extended relativized quark model
• Fully-heavy hexaquark states via the QCD sum rules
• Masses and magnetic moments of exotic fully heavy pentaquarks
• Investigation of a candidate spin-$\frac{1}{2}$ hidden-charm triple strange pentaquark state $P_{csss}$
• Models and Potentials in Hadron Spectroscopy
• Regge Trajectories of Tetraquarks and Pentaquarks with Massive Quarks in the Flux Tube Model
• $\lambda$ and $\rho$ Regge trajectories for the pentaquark $P_{cc\bar{c}bb}$ in the diquark-triquark picture
• Study of Fully heavy Pentaquarks using extended Gursey-Radicati formalism