Extra Generations, Discrepancies of Electroweak Precision Data and Mass of the Higgs
| dc.creator | Novikov, V. A. | |
| dc.date | 2002-05-29 | |
| dc.date.accessioned | 2026-07-07T03:47:10Z | |
| dc.date.available | 2026-07-07T03:47:10Z | |
| dc.description | The latest electroweak precision data are analyzed assuming the existence of the fourth generation of leptons ($N, E$) and quarks ($U, D$), which are not mixed with the known three generations. If all four new particles are heavier than $Z$ boson, quality of the fit for the one new generation is as good as for the Standard Model. In the case of neutral leptons with masses around 50 GeV (``partially heavy extra generations'') the minimum of $χ^2$ is between one and two extra generations. The predicted value of the higgs mass $m_H$ in the presence of the fourth generation can be made rather large. The quality of fits drastically improves when the data on b- and c-quark asymmetries and new NuTeV data on deep inelastic scattering are ignored. | |
| dc.description | 12 paghes, 6 figures, Talk at Les Rencontres de Physique de la Valle d'Aoste 2002 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0205320 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0205320 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/41565 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Extra Generations, Discrepancies of Electroweak Precision Data and Mass of the Higgs | |
| dc.type | text |