Braun, V. M. and Manashov, A. N. and Moch, S-O and Strohmaier, M. (2019) Conformal symmetry of QCD in d-dimensions. PHYSICS LETTERS B, 793. pp. 78-84. ISSN 0370-2693, 1873-2445
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QCD in d = 4 - 2 epsilon space-time dimensions possesses a nontrivial critical point and there are good reasons to expect that this theory restricted to the gauge-invariant subsector is conformally invariant. The subtlety is that the conformal symmetry of the Lagrangian is broken by the Faddeev-Popov quantization procedure. We study this problem by tracing carefully the contributions of gauge non-invariant operators in conformal Ward identities and prove that all such contributions cancel in the correlation functions of gauge-invariant operators. This result gives further support to the application of the conformal symmetry based methods in high-order QCD calculations. (C) 2019 The Author(s). Published by Elsevier B.V.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LOCAL OPERATOR PRODUCTS; GLUON OPERATOR; RENORMALIZATION; INVARIANCE; ANNIHILATION; Conformal symmetry; Renormalization; QCD |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Braun > Group Vladimir Braun |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Apr 2020 13:11 |
| Last Modified: | 08 Apr 2020 13:11 |
| URI: | https://pred.uni-regensburg.de/id/eprint/26843 |
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