The electroweak fit and constraints on new physics

التفاصيل البيبلوغرافية
العنوان: The electroweak fit and constraints on new physics
المؤلفون: Haller, Johannes, group, Gfitter
سنة النشر: 2010
المجموعة: High Energy Physics - Experiment
High Energy Physics - Phenomenology
مصطلحات موضوعية: High Energy Physics - Phenomenology, High Energy Physics - Experiment
الوصف: The global electroweak fit of the Standard Model (SM) with Gfitter can be used to constrain yet unknown SM parameters, such as the Higgs mass, but also physics beyond the SM (BSM) via the formalism of oblique parameters. This paper presents updated results of the Gfitter SM fit using the latest available electroweak precision measurements and the recent combination of direct Higgs searches at the Tevatron. In addition, newly obtained constraints on BSM models, such as models with extra dimensions, little Higgs and a fourth fermion generation, are presented. While a light Higgs mass is preferred by the fit in the SM, significantly larger Higgs masses are allowed in these new physics models.
Comment: Talk given at the 45th Rencontres de Moriond, La Thuile, Italy, March 2010; 6 pages; 8 figures
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/1006.0003
رقم الأكسشن: edsarx.1006.0003
قاعدة البيانات: arXiv