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Revisiting superparticle spectra in superconformal flavor models

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Abstract

We study superparticle spectra in the superconformal flavor scenario with non-universal gaugino masses. The non-universality of gaugino masses can lead to the wino-like or higgsino-like neutralino LSP. Furthermore, it is shown that the parameter space for the higgsino-like LSP includes the region where the fine-tuning problem can be improved. The degeneracy of soft scalar masses does not drastically change when ratios of gaugino masses are of \( \mathcal{O}(1) \). The degeneracy of scalar masses for squarks and left-handed sleptons would be good enough to avoid the FCNC problem but that of right-handed slepton masses is weak. However, the overall size of right-handed slepton masses becomes larger when the bino becomes heavier. Thus, that would be favorable to avoid the FCNC problem due to soft scalar masses and A-terms.

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Correspondence to Ryo Takahashi.

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ArXiv ePrint: 1006.4042

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Kobayashi, T., Nakai, Y. & Takahashi, R. Revisiting superparticle spectra in superconformal flavor models. J. High Energ. Phys. 2010, 93 (2010). https://doi.org/10.1007/JHEP09(2010)093

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