Pregled bibliografske jedinice broj: 1093624
Treatment of \gamma_5 in Dimensionally-Regularized Chiral Yang-Mills Theory with Scalar Fields
Treatment of \gamma_5 in Dimensionally-Regularized Chiral Yang-Mills Theory with Scalar Fields // Proceedings, 19th Hellenic School and Workshops on Elementary Particle Physics and Gravity (CORFU2019), CORFU2019, 090 (2020), 090, 18 doi:10.22323/1.376.0090 (međunarodna recenzija, članak, znanstveni)
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Naslov
Treatment of \gamma_5 in Dimensionally-Regularized
Chiral Yang-Mills Theory with Scalar Fields
Autori
Bélusca-Maïto, Hermès ; Ilakovac, Amon ; Mađor- Božinović, Marija ; Stöckinger, Dominik
Izvornik
Proceedings, 19th Hellenic School and Workshops on Elementary Particle Physics and Gravity (CORFU2019) (1824-8039) CORFU2019, 090
(2020);
090, 18
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
symmetry ; Becchi-Rouet-Stora regularization ; dimensional gauge field theory ; chiral renormalization group ; effective action ; background
Sažetak
We present in these proceedings, our analysis (arXiv:2004.14398) at one-loop level within the Breitenlohner--Maison--'t~Hooft--Veltman (BMHV) scheme of Dimensional Regularization, of the counterterm structure arising due to the presence of the \gamma_5γ 5 matrix and the breaking of the BRST invariance, in a massless chiral Yang-Mills theory supplemented with real scalars. The full one-loop counterterm structure necessary for the renormalization is obtained. This comprises the singular counterterms, including evanescent ones, and by using techniques from algebraic renormalization the symmetry-restoring finite counterterms are evaluated as well. The latter are required to restore the BRST invariance, central to the consistency of the theory and for higher-order calculations. The renormalization group equations are derived within this framework, and are compared with the more ``familiar'' calculation in the context of symmetry- invariant renormalization.
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