Revisiting superparticle spectra in superconformal flavor models

Tatsuo Kobayashi, Yuichiro Nakai, Ryo Takahashi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We study superparticle spectra in the superconformal flavor scenario with nonuniversal 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 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.

Original languageEnglish
Article number93
JournalJournal of High Energy Physics
Issue number9
Publication statusPublished - 2010


  • Supersymmetry phenomenology


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