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hep-ph2014
Analysis of condensation in a Nambu-Jona-Lasinio model
Marco Frasca
A non-local Nambu-Jona-Lasinio model can be derived from QCD in the low-energy limit. In this way, it is possible to fix all the free parameters of the model with physical ones. We…
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-ph2007★ 4 cited
Two-photon decay of heavy quarkonium from heavy-quark spin symmetry
T. N. Pham
With the recent measurements on and at CLEO, Babar and Belle, and with the prospect of finding the at the Tevatron, it seems appropriate to have an…