Transferring Yukawa Hierarchy by Superconformal Dynamics(SUMMER INSTITUTE 2001, Session 2: Phenomenology)
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概要
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We propose a new solution to supersymmetric flavor problem, based on supersymmetric models coupled to superconformal field theories (SCFT's); it simultaneously leads to hierarchical Yukawa couplings and sfermion mass degeneracy. The hierarchical structure for 'messenger' couplings between the SM and SC sectors is generated by Froggatt-Nielsen mechanism without generating D-term contribution to squark and slepton masses. Interestingly, this hierarchy is inversely transferred to the Yukawa couplings in the SM sector. We extend the previous analysis to the case with flavor mixing. In this class of models, flavor-independent structure of the superconformal fixed point guarantees that the sfermion masses of the first and the second generations are completely degenerate at low energy.
- 素粒子論グループ 素粒子研究編集部の論文
- 2002-03-20
著者
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NAKANO Hiroaki
Department of Materials Science & Engineering, Kyushu University
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NAKANO Hiroaki
Department of Physics, Niigata University
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