Production of hadron pairs in electron-positron annihilation near the K(+)K(-), D-Dbar, B-Bbar and Lambda(c)(+)-Lambda(c)(-) thresholds

Abstract

We study the structures in cross sections and R ratios concerning electron-positron annihilation reactions, for open-strangeness, open-charm and open-beauty hadron-pair production, from the perspective of a recently developed production formalism. Special attention is paid to non-resonant contributions. Known, tentative, and yet unknown resonances are spotted, with estimates for their masses and widths.

regular LaTeX, 17 pages, 12 figures

References in corpus (12)

• Higher Charmonia and X,Y,Z states with Screened Potential
• Evidence for a Narrow Near-Threshold Structure in the $J/\psi \varphi$ Mass Spectrum in $B^{+}\to J/\psi \varphi K^{+}$ Decays
• Observation of a near-threshold enhancement in the e+e- -->Lambda_c+Lambda_c- cross section using initial-state radiation
• X(3872) and Other Possible Heavy Molecular States
• Hadron Loops: General Theorems and Application to Charmonium
• Possible psi(5S), psi(4D), psi(6S) and psi(5D) signals in Lambda(c)-antiLambda(c)
• An alternative fit to Belle mass spectra for DD, D*D* and Lambda_C Lambda_c
• Recoupling matrix elements and decay
• Measurement of the e+e- -> K+K- cross section in the energy range s**(1/2) = 1.04 - 1.38 GeV with the SND detector in the experiment at the VEPP-2M e+e- collider
• Coupling constants and transition potentials for hadronic decay modes of a meson
• The X(4260) and possible confirmation of psi(3D), psi(5S), psi(4D), psi(6S) and psi(5D) in J/psi pi+ pi-
• Diresonance in production and scattering of heavy mesons

Cited by in corpus (12)

• Influence of threshold effects induced by charmed meson rescattering
• ${\rm Y}(nl)$ decay into $B^{(\ast )}{\bar{B}}^{(\ast )}$
• Comment on "Study of D(sJ) decays to D(*)K in inclusive e(+)e(-) interactions"
• Modern meson spectroscopy: the fundamental role of unitarity
• A very broad X(4260) and the resonance parameters of the 3D vector charmonium state
• Line-shape and poles of the $\psi (3770)$
• $e^{+}{e}^{-}\to {\Lambda }_c^{+}{\bar{\Lambda }}_c^{-}$ cross sections and the ${\Lambda }_c^{+}$ electromagnetic form factors within the extended vector meson dominance model
• Radial Regge trajectories for higher $\psi (nS)$ and $\psi (nD)$ states
• Substructures from weak interactions in light of possible threshold signals at LEP and LHC
• The electromagnetic form factors and spin polarization of ${\Lambda }_c^{+}$ in the process $e^{+}{e}^{-}\to {\Lambda }_c^{+}{\bar{\Lambda }}_c^{-}$
• Predictions for Bottomonium from a Relativistic Screened Potential Model
• Mass and width of the Upsilon(4S)