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The structure of the fermion mass matrices is investigated in the neighbourhood of an infrared fixed point with special emphasis on the mixing angles which determine the charged current couplings. We find that it is necessary to introduce a fourth generation of quarks whose masses are predicted. The mass of the top quark is close to 35 GeV. The solution for a two family problem is found, which predicts very small charged current couplings of the very heavy to the lighter quarks.  相似文献   

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Equations describing the spatial distribution of the order parameter and the rotational velocities are derived on the basis of the thermodynamic potential of rotating He II near the point. It is shown that the given approach is analogous to the Ginzburg-Landau-Abrikosov theory (superconductors).Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 5, pp. 75–81, May, 1984.The author is grateful to V. L. Ginzburg and A. A. Sboyanin for their interest in the work and for sending a copy of the article [13], and also to L. P. Pitaevskii for a critique.  相似文献   

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