126,499 research outputs found

    Renormalization Group Fixed Point with a Fourth Generation: Higgs-induced Bound States and Condensates

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    In the Standard Model with four generations, the two-loop renormalization group equations for the Higgs quartic and Yukawa couplings have a fixed point structure. If the masses of the fourth family are sufficiently heavy, it will contain a natural scale ΛFP\Lambda_{FP} in the range of a few TeV to the order of 10210^2 TeV, above which the Higgs quartic and Yukawa couplings become practically constant. We found that around ΛFP\Lambda_{FP} the strong Yukawa couplings make it possible for the fourth generation to form bound states, including composite extra Higgs doublets. In this scenario the fourth generation condensates are obtained without introducing Technicolor or other unknown interactions.Comment: 22 pages, 10 figure

    Elliptic equations with transmission and Wentzell boundary conditions and an application to steady water waves in the presence of wind

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    In this paper, we present results about the existence and uniqueness of solutions of elliptic equations with transmission and Wentzell boundary conditions. We provide Schauder estimates and existence results in H\"older spaces. As an application, we develop an existence theory for small-amplitude two-dimensional traveling waves in an air-water system with surface tension. The water region is assumed to be irrotational and of finite depth, and we permit a general distribution of vorticity in the atmosphere.Comment: 33 page
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