منابع مشابه
Landscape of Little Hierarchy
We investigate the little hierarchy between Z boson mass and the SUSY breaking scale in the context of landscape of electroweak symmetry breaking vacua. We consider the radiative symmetry breaking and found that the scale where the electroweak symmetry breaking conditions are satisfied and the average stop mass scale is preferred to be very close to each other in spite of the fact that their or...
متن کاملSUSY without the Little Hierarchy
We propose a simple gauge extension of the minimal supersymmetric standard model (MSSM), where the fine tuning in the Higgs mass parameters is highly reduced. The Higgs boson is insensitive to high energies because of supersymmetry and also because it is a pseudo-Goldstone boson of a global symmetry (referred to as “double protection” or “super-little Higgs” mechanism). A large shift in the Hig...
متن کاملLittle Supersymmetry and the Supersymmetric Little Hierarchy Problem
The current experimental lower bound on the Higgs mass significantly restricts the allowed parameter space in most realistic supersymmetric models, with the consequence that these models exhibit significant fine-tuning. We propose a solution to this ‘supersymmetric little hierarchy problem’. We consider scenarios where the stop masses are relatively heavy in the 500 GeV to a TeV range. Radiativ...
متن کاملLittle solution to the little hierarchy problem: A vectorlike generation
Citation Graham, Peter W. et al. " Little solution to the little hierarchy problem: A vectorlike generation. " Physical Review D 81.5 (2010): 055016. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access...
متن کاملTeV Symmetry and the Little Hierarchy Problem
Constraints from precision electroweak measurements reveal no evidence for new physics up to 5 – 7 TeV, whereas naturalness requires new particles at around 1 TeV to address the stability of the electroweak scale. We show that this “little hierarchy problem” can be cured by introducing a symmetry for new particles at the TeV scale. As an example, we construct a little Higgs model with this new ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2007
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2007.03.035