2 papers
hep-ph2010
Two-Photon and Two-gluon Decays of and P-wave Heavy Quarkonium States
T. N. Pham
By neglecting the relative quark momenta in the propagator term, the two-photon and two-gluon decay amplitude of heavy quarkonia states can be written as a local heavy quark field…
hep-th2010
The gauge invariant quark Green's function in two-dimensional QCD
H. Sazdjian
The gauge invariant quark Green's function, defined with a path-ordered phase factor along a straight line, is studied in two-dimensional QCD in the large-N_c limit by means of an…