منابع مشابه
Supersymmetry, Naturalness, and Signatures at the LHC
Weak scale supersymmetry is often said to be fine-tuned, especially if the matter content is minimal. This is not true if there is a large A term for the top squarks. We present a systematic study on fine-tuning in minimal supersymmetric theories and identify low energy spectra that do not lead to severe fine-tuning. Characteristic features of these spectra are: a large A term for the top squar...
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Almost every branch of science has its own version of the “naturalness criterion”. In environmental sciences, it refers to the degree to which an area is pristine, free from human influence, and characterized by native species [2]. In mathematics, its meaning is associated with the intuitiveness of certain fundamental concepts, viewed as an intrinsic part of our thinking [3]. One can find the u...
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The start of LHC has motivated an effort to determine the relative probability of the different regions of the MSSM parameter space, taking into account the present, theoretical and experimental, wisdom about the model. Since the present experimental data are not powerful enough to select a small region of the MSSM parameter space, the choice of a judicious prior probability for the parameters ...
متن کاملNaturalness, Weak Scale Supersymmetry and the Prospect for the Observation of Supersymmetry at the Tevatron and at the LHC
Naturalness bounds on weak scale supersymmetry in the context of radiative breaking of the electro-weak symmetry are analyzed. In the case of minimal supergravity it is found that for low tanβ and for low values of fine tuning Φ, where Φ is defined essentially by the ratio μ/M Z where μ is the Higgs mixing parameter and MZ is the Z boson mass, the allowed values of the universal scalar paramete...
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Common lore has it that naturalness of electroweak breaking in the SM requires new physics (NP) at Λ < ∼ 2− 3 TeV, hopefully within the reach of LHC. Moreover the Higgs should be light (m h < ∼ 219 GeV) to pass electroweak precision tests (EWPT). However one should be prepared for " unexpected " (although admittedly unpleasant) results at LHC, i.e. no NP and/or a heavy Higgs. We revisit recent ...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2013
ISSN: 1029-8479
DOI: 10.1007/jhep01(2013)149