Enhanced Global Symmetries and a Strong Electroweak Sector
| dc.creator | Sannino, Francesco | |
| dc.date | 1999-12-11 | |
| dc.date.accessioned | 2026-07-07T04:09:05Z | |
| dc.date.available | 2026-07-07T04:09:05Z | |
| dc.description | In this talk I review the intriguing possibility (see Reference[1]) that the physical spectrum of a vector-like gauge field theory exhibits an enhanced global symmetry near a chiral phase transition. A transition from the Goldstone phase to the symmetric phase is expected as the number of fermions Nf is increased to some critical value. Various investigations have suggested that a parity-doubled spectrum develops as the critical value is approached. Using an effective Lagrangian as a guide one observes that a parity doubling is associated with the appearance of an enhanced global symmetry in the spectrum of the theory. If such a near-critical theory describes symmetry breaking in the electroweak theory, the additional symmetry suppresses the contribution of the parity doubled sector to the S parameter. | |
| dc.description | Talk presented at the Cargese 99 School, "Beyond the Standard Model", Corse, France. 10 pages, RevTex | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9912309 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9912309 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/49711 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Enhanced Global Symmetries and a Strong Electroweak Sector | |
| dc.type | text |