Cong-Feng Qiao

Physics at BES-III

We give a detailed review of the construction of gauge invariant Lagrangians for free and interacting higher spin fields using the BRST approach developed over the past few years.This physics book provides detailed discussions on important topics in

One explanation for the exotic state Y(4260)

\tau

Inclusive J / psi productions at e+ e- colliders

-charm physics that will be explored during the next few years at \bes3 . Both theoretical and experimental issues are covered, including extensive reviews of recent theoretical developments and experimental techniques. Among the subjects covered are: innovations in Partial Wave Analysis (PWA), theoretical and experimental techniques for Dalitz-plot analyses, analysis tools to extract absolute branching fractions and measurements of decay constants, form factors, and CP-violation and \DzDzb-oscillation parameters. Programs of QCD studies and near-threshold tau-lepton physics measurements are also discussed.

B

In this Letter we interpret the Y(4260), a state recently discovered by the BaBar Collaboration that has a mass within the range of conventional charmonium states, as having a molecular-state structure. In our scheme this molecular-like state is not constructed out of two-quark mesons, but rather out of baryons, i.e., the Y(4260) is a baryonium state. With this interpretation, the unusual measured properties of the Y(4260) are easily understood and some further peculiar decay characteristics are predicted.

_c

Inclusive

exclusive decays to charmonium and a light meson at next-to-leading order accuracy

J/\psi

Pentaquark states in a diquark–triquark model

productions in

Local unitary classification of arbitrary dimensional multipartite pure states.

e^+ e^-

Testing charmonium production mechanism via the polarized J/ψ pair production at the LHC

annihilation is studied in the framework of NRQCD. We first review the leading-order calculations of the cross sections for

A Uniform description of the states recently observed at B-factories

e^+ e^- \to J/\psi c \bar{c}