Gauge Coupling β Functions to Four-Loop Order in the Standard Model
Abstract:
We compute the β functions of the three standard model gauge couplings to four-loop order in the modified minimal subtraction scheme. At this order a proper definition of γ$_{5}$ in D = 4 − 2$_{ ϵ }$ space-time dimensions is required; however, in our calculation we determine the γ$_{5}$-dependent terms by exploiting relations with β function coefficients at lower loop orders.
| Zugehörige Institution(en) am KIT | Institut für Theoretische Teilchenphysik (TTP) |
| Publikationstyp | Zeitschriftenaufsatz |
| Publikationsjahr | 2020 |
| Sprache | Englisch |
| Identifikator | ISSN: 0031-9007, 1079-7114 KITopen-ID: 1000117689 |
| Erschienen in | Physical review letters |
| Verlag | American Physical Society (APS) |
| Band | 124 |
| Heft | 7 |
| Seiten | Art. Nr.: 071803 |
| Vorab online veröffentlicht am | 21.02.2020 |
| Nachgewiesen in | Dimensions Scopus Web of Science |