One-loop Radiative Corrections to the rho Parameter in the Littlest Higgs Model
| dc.creator | Chen, Mu-Chun | |
| dc.creator | Dawson, Sally | |
| dc.date | 2003-11-04 | |
| dc.date | 2004-04-28 | |
| dc.date.accessioned | 2026-07-07T10:48:54Z | |
| dc.date.available | 2026-07-07T10:48:54Z | |
| dc.description | We perform a one-loop analysis of the rho parameter in the Littlest Higgs model, including the logarithmically enhanced contributions from both fermion and scalar loops. We find the one-loop contributions are comparable to the tree level corrections in some regions of parameter space. The fermion loop contribution dominates in the low cutoff scale f region. On the other hand, the scalar loop contribution dominates in the high cutoff scale f region and it grows with the cutoff scale f. This in turn implies an upper bound on the cutoff scale. A low cutoff scale is allowed for a non-zero triplet VEV. Constraints on various other parameters in the model are also discussed. The role of triplet scalars in constructing a consistent renormalization scheme is emphasized. | |
| dc.description | ReVTeX4; 39 pages; 12 figures; v2: renormalization scheme clarified; v3: version to appear in Phys. Rev. D | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0311032 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0311032 | |
| dc.identifier | Phys.Rev.D70:015003,2004 | |
| dc.identifier | doi:10.1103/PhysRevD.70.015003 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/184043 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | One-loop Radiative Corrections to the rho Parameter in the Littlest Higgs Model | |
| dc.type | text |