Bali, Gunnar S. and Bauer, Clemens and Pineda, Antonio and Torrero, Christian (2013) Perturbative expansion of the energy of static sources at large orders in four-dimensional SU(3) gauge theory. PHYSICAL REVIEW D, 87 (9): 094517. ISSN 1550-7998, 1550-2368
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We determine the infinite volume coefficients of the perturbative expansions of the self-energies of static sources in the fundamental and adjoint representations in SU(3) gluodynamics to order alpha(20) in the strong coupling parameter alpha. We use numerical stochastic perturbation theory, where we employ a new second order integrator and twisted boundary conditions. The expansions are obtained in lattice regularization with the Wilson action and two different discretizations of the covariant time derivative within the Polyakov loop. Overall, we obtain four different perturbative series. For all of them the high order coefficients display the factorial growth predicted by the conjectured renormalon picture, based on the operator product expansion. This enables us to determine the normalization constants of the leading infrared renormalons of heavy quark and heavy gluino pole masses and to translate these into the modified minimal subtraction scheme (MS). We also estimate the four-loop beta-function coefficient of the lattice scheme.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | STOCHASTIC DIFFERENTIAL-EQUATIONS; 3-LOOP BETA-FUNCTION; QUARK MASS; QUANTUM CHROMODYNAMICS; NUMERICAL-INTEGRATION; LAMBDA-PARAMETERS; WILSON FERMIONS; CONTINUUM QCD; ONE-LOOP; LATTICE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Gunnar Bali |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Apr 2020 05:27 |
| Last Modified: | 09 Apr 2020 05:27 |
| URI: | https://pred.uni-regensburg.de/id/eprint/16647 |
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