New Approach to SUSY Flavor Problem via Superconformal Gauge Dynamics (超弦理論の展望)
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概要
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We discuss a phenomenological application of strongly-coupled, superconformal field theories (SCFT's) with a nontrivial infrared (IR) fixed point. If the quarks and leptons couple to a SOFT sector in an appropriate way, IR convergence property of the conformal fixed point ensures IR suppression of flavor violations in sfermion masses. When the SOFT is perturbed by a supersymmetric mass term, however, the resultant decoupling of the SOFT would induce large threshold corrections. To calculate the threshold effects on soft supersymmetry-breaking terms, we derive a compact expression for them in terms of supersymmetric anomalous dimensions. According to our formula, the decoupling of SOFT does not spoil the suppression of flavor-changing sfermion masses.
- 素粒子論グループ 素粒子研究編集部の論文
- 2003-09-20
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