Cancellation of energy-divergences in Coulomb gauge QCD (CROSBI ID 115739)
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Podaci o odgovornosti
Andraši, Anđelka ; Taylor, J. C.
engleski
Cancellation of energy-divergences in Coulomb gauge QCD
In the Coulomb gauge of nonabelian gauge theories there are in general, in individual graphs, 'energy-divergences' on integrating over the loop energy variable for fixed loop momentum. These divergences are avoided in the Hamiltonian, phase-space formulation. But, even in this formulation, energy-divergences re-appear at 2-loop order. We show in an example how these cancel between graphs as a consequence of Ward identities.
QCD ; Coulomb gauge
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Podaci o izdanju
41
2005.
377-380
objavljeno
1434-6044
1434-6052
10.1140/epjc/s2005-02239-4