ar X iv : h ep - t h / 05 03 09 9 v 1 1 1 M ar 2 00 5 Cancellation of energy - divergences in Coulomb gauge QCD
نویسنده
چکیده
In the Coulomb gauge of nonablian 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. Pacs numbers: 11.15.Bt; 11.10.Gh
منابع مشابه
ar X iv : h ep - t h / 05 03 09 9 v 2 1 8 A pr 2 00 5 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 c...
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