This report summarises the physics opportunities for the study of Higgs bosons and the dynamics of electroweak symmetry breaking at the 100 TeV pp collider.
By solving the Einstein equations of the graviton coupling with a real scalar dilaton field, we establish a general framework to self-consistently solve the geometric background with black-hole for any given phenomenological holographic models. In this framwork, we solve the black-hole background, the corresponding dilaon field and the dilaton potential for the deformed AdS 5 model with a positive/negative quadratic correction. We systematically investigate the thermodynamical properties of the deformed AdS 5 model with a positive and negative quadratic correction, respectively, and compare with lattice QCD on the results of the equation of state, the heavy quark potential, the Polyakov loop and the spatial Wilson loop. We find that the bulk thermodynamical properties are not sensitive to the sign of the quadratic correction, and the results of both deformed holographic QCD models agree well with lattice QCD result for pure SU(3) gauge theory. However, the results from loop operators favor a positive quadratic correction, which agree well with lattice QCD result. Especially, the result from the Polyakov loop excludes the model with a negative quadratic correction in the warp factor of AdS 5 .
In this paper we analyze the process B s → ℓ + ℓ − in a model II 2HDM and MSSM. All the leading terms of Wilson coefficients relevant to the process are given in the large tanβ limit. It is shown that the decay width for B s → ℓ + ℓ − depends on all parameters except m A 0 in the 2HDM. The branching ratio of B s → µ + µ − can reach its experimental bound in some large tanβ regions of the parameter space in MSSM because the amplitude increases like tan 3 β in the regions. For l=τ , the branching ratio can even reach 10 −4 in the regions. Therefore, the experimental measurements of leptonic decays of B s could put a constraint on the contributions of neutral Higgs bosons and consequently the parameter space in MSSM.
The dominance of h → ηη decay mode for the intermediate mass Higgs boson is highly motivated to solve the little hierarchy problem and to ease the tension with the precision data. However, the discovery modes for m h < ∼ 150 GeV, h → γγ and W/Zh → (ℓν/ℓ l)(b b), will be substantially affected. In this Letter, we show that h → ηη → 4b is complementary and we can use this decay mode to detect the intermediate Higgs boson at the LHC, via W h and Zh production. Requiring at least one charged lepton and 4 B-tags in the final state, we can identify a clean Higgs boson signal for m h < ∼ 150 GeV with a high significance and with a full Higgs mass reconstruction. We use the next-to-minimal supersymmetric standard model and the simplest little Higgs model for illustration.
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