Monday, May 28, 2012

1111.3946 (Clemens Bauer et al.)

Compelling evidence of renormalons in QCD from high order perturbative
expansions
   [PDF]

Clemens Bauer, Gunnar S. Bali, Antonio Pineda
We compute the static self-energy of SU(3) gauge theory in four spacetime dimensions to order \alpha^{20} in the strong coupling constant. We employ lattice regularization to enable a numerical simulation within the framework of stochastic perturbation theory. We find perfect agreement with the factorial growth of high order coefficients predicted by the conjectured renormalon picture based on the operator product expansion.
View original: http://arxiv.org/abs/1111.3946

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