Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-07-28
Int.J.Mod.Phys.A25:1155-1163,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages latex, Int. J. Mod. Phys. A (accepted)
Scientific paper
10.1142/S0217751X10047865
We study non-perturbative gluon pair production from arbitrary time dependent chromo-electric field E^a(t) with arbitrary color index a =1,2,...8 via Schwinger mechanism in arbitrary covariant background gauge \alpha. We show that the probability of non-perturbative gluon pair production per unit time per unit volume per unit transverse momentum \frac{dW}{d^4xd^2p_T} is independent of gauge fixing parameter \alpha. Hence the result obtained in the Fynman-'t Hooft gauge, \alpha=1, is the correct gauge invariant and gauge parameter \alpha independent result.
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