560 research outputs found

    Search for Exotic Decays of the Higgs Boson to a Pair of New Light Bosons in the Final States with Four Bottom Quarks

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    In this dissertation, we present a search for non-standard decay of the Standard Model-like Higgs boson to a pair of pseudoscalar lighter bosons H ‚Üíaa with 12 GevIn this analysis, only the W Higgs associated production is considered to characterize the final state by one isolated high p_T lepton. Then, the MVA BDT classifier is used to distinguish between signal and background. And finally, The CLs method is used in the three and four reconstructed b-quark regions to set upper limits on the branching ratio Br(H ‚Üíaa)√óBr^2 (a ‚Üí bb ŐÖ)

    Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

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    Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function √į√į¬•with constraints√į √į √į¬• ¬• √įand√į¬ī√į¬• = √į. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

    Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at ‚ąös = 13 TeV