Light Gauginos and Conformal Sequestering

Details Light Gauginos and Conformal Sequestering Light Gauginos and Conformal Sequestering

2010-03-29

arxiv.org/abs/1003.5663v2

Phys.Rev.D83:125010,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 1 figure. References added

Scientific paper

10.1103/PhysRevD.83.125010

In a wide class of direct and semi-direct gauge mediation models, it has been observed that the gaugino masses vanish at leading order. It implies that there is a hierarchy between the gaugino and sfermion masses, invoking a fine-tuning problem in the Higgs sector via radiative corrections. In this paper, we explore the possibility of solving this anomalously light gaugino problem exploiting strong conformal dynamics in the hidden sector. With a mild assumption on the anomalous dimensions of the hidden sector operators, we show that the next to leading order contributions to the gaugino masses can naturally be in the same order as the sfermion masses. \mu/B_\mu problem is also discussed.

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