The Lost Tribes of Charmonium

Abstract

To illustrate the campaign to extend our knowledge of the charmonium spectrum, I focus on a puzzling new state, $X(3872)\to {\pi }^{+}{\pi }^{-}J/\psi$. Studying the influence of open-charm channels on charmonium properties leads us to propose a new charmonium spectroscopy: additional discrete charmonium levels that can be discovered as narrow resonances of charmed and anticharmed mesons. I call attention to open issues for theory and experiment.

11 pages, 11 figures, uses espcrc2.sty (included); presented at BEACH 2004, 28 June - 3 July, IIT/Chicago

References in corpus (3)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• E835 at FNAL: Charmonium Spectroscopy in $\bar{p}p$ Annihilations
• Hadron Spectrum from Dynamical Lattice QCD Simulations

Cited by in corpus (19)

• Heavy quarkonium: progress, puzzles, and opportunities
• Diquark-Antidiquarks with Hidden or Open Charm and the Nature of X(3872)
• The New Heavy Mesons: A Status Report
• Is the X(3872) Production Cross Section at Tevatron Compatible with a Hadron Molecule Interpretation?
• X(3872): Hadronic Molecules in Effective Field Theory
• A case for hidden $b\bar{b}$ tetraquarks based on $e^{+}{e}^{-}\to b\bar{b}$ cross section between $\sqrt{s}=10.54$ and 11.20 GeV
• Decays of the X(3872) into J/psi and Light Hadrons
• Hadronic molecules in B decays
• Factorization in the Production and Decay of the X(3872)
• Observation of the ^1P_1 State of Charmonium
• Search for excited charmonium states in $e^{+}{e}^{-}$ Annihilation at $\sqrt{s}=10.6$ GeV
• Angular distributions in $J/\psi (\rho ,\omega )$ states near threshold
• Covariant Light-Front Approach for $B_c$ Decays into Charmonium: Implications on Form Factors and Branching Ratios
• Swimming with Quarks
• Analysis of the radiative decays among the charmonium states
• Decay properties of the $X(3872)$ through the Fierz rearrangement
• Theoretical Overview: The New Mesons
• Diquark-Antidiquark Interpretation of Mesons
• Insights into the nature of the $X(3872)$ through B meson decays