Pregled bibliografske jedinice broj: 1093598
Dimensional regularization and Breitenlohner- Maison/’t Hooft-Veltman scheme for γ5 applied to chiral YM theories: full one-loop counterterm and RGE structure
Dimensional regularization and Breitenlohner- Maison/’t Hooft-Veltman scheme for γ5 applied to chiral YM theories: full one-loop counterterm and RGE structure // Journal of High Energy Physics, 2020 (2020), 8; 24, 71 doi:10.1007/jhep08(2020)024 (međunarodna recenzija, članak, znanstveni)
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Naslov
Dimensional regularization and Breitenlohner-
Maison/’t Hooft-Veltman scheme for γ5 applied
to chiral YM theories: full one-loop
counterterm and RGE structure
Autori
Bélusca-Maïto, Hermès ; Ilakovac, Amon ; Mađor- Božinović, Marija ; Stöckinger, Dominik
Izvornik
Journal of High Energy Physics (1126-6708) 2020
(2020), 8;
24, 71
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Anomalies in Field and String Theories, BRST Quantization, Renormalization, Group Renormalization, Regularization and Renormalons
Sažetak
E study the application of the Breitenlohner- Maison-’t Hooft-Veltman (BMHV) scheme of Dimensional Regularization to the renormalization of chiral gauge theories, focusing on the specific counterterm structure required by the non-anticommuting Dirac γ5 matrix and the breaking of the BRST invariance. Calculations are performed at the one-loop level in a massless chiral Yang-Mills theory with chiral fermions and real scalar fields. We discuss the setup and properties of the regularized theory in detail. Our central results are the full counterterm structures needed for the correct renormalization: the singular UV-divergent counterterms, including evanescent counterterms that have to be kept for consistency of higher-loop calculations. We find that the required singular, evanescent counterterms associated with vector and scalar fields are uniquely determined but are not gauge invariant. Furthermore, using the framework of algebraic renormalization, we determine the symmetry-restoring finite counterterms, that are required to restore the BRST invariance, central to the consistency of the theory. These are the necessary building blocks in one-loop and higher-order calculations. Finally, renormalization group equations are derived within this framework, and the derivation is compared with the more customary calculation in the context of symmetry- invariant regularizations. We explain why, at one-loop level, the extra BMHV-specific counterterms do not change the results for the RGE. The results we find complete those that have been obtained previously in the literature in the absence of scalar fields.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
HRZZ-IP-2016-06-7460 - Precizni izračuni fizikalnih veličina u supersimetričnim modelima fizike čestica (PRECIOUS) (Ilakovac, Amon, HRZZ - 2016-06) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
- Nature Index