Violation of the Appelquist-Carazzone decoupling in non-SUSY GUT
| dc.creator | Chankowski, Piotr H. | |
| dc.creator | Wagner, Jakub | |
| dc.date | 2007-07-16 | |
| dc.date.accessioned | 2026-07-07T11:17:49Z | |
| dc.date.available | 2026-07-07T11:17:49Z | |
| dc.description | We point out that in non supersymmetric GUTs, in which the SU(5) gauge symmetry is broken down to the Standard Model gauge group by a $\mathbf{24}$ Higgs multiplet the Appelquist-Carazzone decoupling is violated. This is because the $SU(2)_L$ Higgs triplet contained in the $\mathbf{24}$ acquires a dimensionfull coupling to the $SU(2)_L$ Higgs doublets which is proportional to the GUT breaking vacuum expectation value (VEV) $V$. As a result, at one loop heavy gauge and Higgs fields contribution to tadpoles generate a VEV of the triplet which is not suppressed for $V\to\infty$ and violates the custodial symmetry. | |
| dc.description | 17 pages, no figures | |
| dc.identifier | https://arxiv.org/abs/0707.2323 | |
| dc.identifier | http://arxiv.org/abs/0707.2323 | |
| dc.identifier | Phys.Rev.D77:025033,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.77.025033 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/193135 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Violation of the Appelquist-Carazzone decoupling in non-SUSY GUT | |
| dc.type | text |