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https://hdl.handle.net/20.500.14279/29891| Title: | Perturbative study of the Gluino-Glue operator in SYM |
| Authors: | Costa, Marios Panagopoulos, George Panagopoulos, Haralambos G. Spanoudes, Gregoris Herodotou, Herodotos Philippides, P. |
| Major Field of Science: | Engineering and Technology |
| Field Category: | Electrical Engineering - Electronic Engineering - Information Engineering |
| Keywords: | Glues;Gluing;Lattice theory;Mixing;Perturbation techniques;Quantum theory |
| Issue Date: | 26-Jul-2021 |
| Source: | 38th International Symposium on Lattice Field Theory, LATTICE 2021, Virtual, Online, 26 - 30 July 2021 |
| Volume: | 396 |
| Conference: | Proceedings of Science |
| Abstract: | We investigate the renormalization of the Gluino-Glue operator, using both Lattice Perturbation Theory (LPT) and a Gauge Invariant Renormalization Scheme (GIRS). The latter scheme involves gauge-invariant Green's functions of two operators at different space-time points, which can be also computed via numerical simulations. There is no need to fix a gauge and the mixing with gauge noninvariant operators is inconsequential. We calculate perturbatively the conversion factor relating GIRS with the Modified Minimal Subtraction scheme. On the other hand, the Gluino-Glue operator being mixes with several gauge noninvariant operators which have the same quantum numbers. The determination of the mixing matrix on the lattice demands the calculation of 2-pt and 3-pt Green's functions with external gluon, gluino and ghost fields using LPT. We compute at one-loop order the renormalization of the Gluino-Glue operator and all operator mixing coefficients. |
| URI: | https://hdl.handle.net/20.500.14279/29891 |
| ISSN: | 18248039 |
| Rights: | © Elsevier B.V. Attribution-NonCommercial-NoDerivatives 4.0 International |
| Type: | Conference Papers |
| Affiliation : | University of Cyprus Stanford University Cyprus University of Technology |
| Appears in Collections: | Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation |
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