68,069 research outputs found

    CP Asymmetry in Charged Higgs Decays to Chargino-Neutralino

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    We analyze the charge-parity (CP) asymmetry in the charged Higgs boson decays to chargino-neutralino pairs, H^- -> chargino_i + neutralino_j. We show first that these modes have a large branching ratio for m_H^- > 600 GeV. We use Cutkosky rules to obtain the analytical formulas needed for the evaluation of the asymmetry under consideration. We then calculate the CP asymmetry in chargino-neutralino decays by including supersymmetric mass bounds, as well as constraints from b -> s gamma, (g-2)_mu, Delta\rho and electric dipole moments. Finally, we discuss observability of the asymmetry at the LHC by calculating the number of required charged Higgs events to observe the asymmetry for each decay channel. We show that the inclusion of constraints considerably reduces the projected CP asymmetry, and that the optimal channel for observing the asymmetry is H^- -> chargino_1 + neutralino_2.Comment: 23 pages, 8 figures, one tabl

    Beyond the global financial crisis: central banking in a new global financial system

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    Since the outbreak of the global crisis in mid 2007, there has been an extensive discussion on root causes. Some blame the greed and corruption of financial actors. Others put the blame on central bankers for easy money or regulators who remained idle as too much risks accumulated in financial markets. According to advanced economies, global imbalances have been caused by emerging surplus countries that keep their currency undervalued and their domestic consumption restricted. It is unfortunate that all these arguments and counter arguments, which may be valid in their own way, prevents a more general discussion on the deep-seated conflicts and contradictions in the global economic, social and political paradigm upon which the world order is built. To put it another way, the problems we face today do not arise from some operational failures, but from the system itself and the underlying philosophical framework. In fact this is a crisis of three main pillars of our existing system: the crisis of the economic theory, the crisis of the globalization, and the crisis of market based financial system.global financial crisis, economic theory, financial system

    Work-Family Conflict and Job Satisfaction: the Mediating Role of Person-Organization Fit Study on Employees of the BRI Aceh Region

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    The objective of this research is to analyze the influence of person–organizationfit (P-O fit) on work–family conflict (WFC) and job satisfaction (JS) relationships atBank Rakyat Indonesia, Aceh Regional in Banda Aceh. The sample includes 127employees, those who have worked more than two years. The data are collectedvia questionnaire. The equipment of data analysis is structural equation modeling(SEM), which proceeds using analysis of moment structure (AMOS). The results ofthe study show the varible P-O fit role as a mediator variable in the relationshipof WFC and job satisfaction. WFC does not have a direct effect on job satisfaction.&nbsp

    An Algorithm for Odd Graceful Labeling of the Union of Paths and Cycles

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    In 1991, Gnanajothi [4] proved that the path graph P_n with n vertex and n-1 edge is odd graceful, and the cycle graph C_m with m vertex and m edges is odd graceful if and only if m even, she proved the cycle graph is not graceful if m odd. In this paper, firstly, we studied the graph C_m \cup P_m when m = 4, 6,8,10 and then we proved that the graph C_ \cup P_n is odd graceful if m is even. Finally, we described an algorithm to label the vertices and the edges of the vertex set V(C_m \cup P_n) and the edge set E(C_m \cup P_n).Comment: 9 Pages, JGraph-Hoc Journa

    Weak Isospin Violations in Charged and Neutral Higgs Couplings from SUSY Loop Corrections

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    Supersymmetric QCD and supersymmetric electroweak loop corrections to the violations of weak isospin to Yukawa couplings are investigated. Specifically it involves an analysis of the supersymmetric loop corrections to the Higgs couplings to the third generation quarks and leptons. Here we analyze the SUSY loop corrections to the charged Higgs couplings which are then compared with the supersymmetric loop corrections to the neutral Higgs couplings previously computed. It is found that the weak isospin violations can be quite significant, i.e, as much as 40-50% or more of the total loop correction to the Yukawa coupling. The effects of CP phases are also studied and it is found that these effects can either enhance or suppress the weak isospin violations. We also investigate the weak isospin violation effects on the branching ratio BR(Htˉb)/BR(Hνˉττ)BR(H^-\to\bar t b)/ BR(H^-\to \bar\nu_{\tau}\tau^-) and show that the effects are sensitive to CP phases. Thus an accurate measurement of this branching ratio along with the branching ratio of the neutral Higgs boson decays can provide a measure of weak isospin violation along with providing a clue to the presence of supersymmetry.Comment: 20 pages, 9 figure
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