Fine-tuning in GGM and the 126 GeV Higgs particle
نویسندگان
چکیده
منابع مشابه
Fine tuning in One-Higgs and Two-Higgs Standard Models
The fine-tuning principles are examined to predict the top-quark and Higgs-boson masses. The modification of the Veltman condition based on the compensation of vacuum energies is developed. It is implemented in the Standard Model and in its minimal extension with two Higgs doublets. The top-quark and Higgs-boson couplings are fitted in the SM for the lowest ultraviolet scale where the fine-tuni...
متن کاملThe Fine-tuning Problem in Little Higgs Models
Little Higgs models represent an alternative to Supersymmetry as a solution to the Hierarchy Problem. After introducing the main physical ideas of these models, we present the fine-tuning associated to the electroweak breaking in Little Higgs scenarios. Taking into account the most general properties of this scenarios and focusing on two representative “Little Higgs” models, we find that the fi...
متن کاملThe fine-tuning problems of particle physics and anthropic mechanisms
Many of the classic problems of particle physics appear in a very different light when viewed from the perspective of the multiverse. Most importantly the two great “fine tuning” problems that motivate the field are far less serious when one accounts for the required anthropic constraints which exist in a multiverse. However, the challenge then becomes to construct a realistic physical theory o...
متن کامل126 GeV Higgs Boson Associated with D-term Triggered Dynamical Supersymmetry Breaking
Continuing with our previous work on D-term triggered dynamical supersymmetry breaking, we consider a system in which our generic N = 1 action is minimally extended to include the pair of Higgs doublet superfields charged under the overall U(1) together with μ and Bμ terms. The gauge group is taken to be SU(3)C × SU(2)L × U(1)Y ×U(1). We point out, among other things, that the Higgs mass less t...
متن کاملAge constraints and fine tuning in variable-mass particle models
VAMP ~variable-mass particle! scenarios, in which the mass of the cold dark matter particles is a function of the scalar field responsible for the present acceleration of the Universe, have been proposed as a solution to the cosmic coincidence problem, since in the attractor regime both dark energy and dark matter scale in the same way. We find that only a narrow region in parameter space leads...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2013
ISSN: 1029-8479
DOI: 10.1007/jhep05(2013)125