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  Revisiting superparticle spectra in superconformal flavor models

Kobayashi, T., Nakai, Y., & Takahashi, R. (2010). Revisiting superparticle spectra in superconformal flavor models. Journal of High Energy Physics, 2010(9): 093, pp. 1-17. doi:10.1007/JHEP09(2010)093.

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Kobayashi, Tatsuo1, Autor
Nakai, Yuichiro1, Autor
Takahashi, Ryo2, Autor           
Affiliations:
1T. Kobayashi (Kyoto University; Department of Physics, Kyoto University, Kyoto 606-8502, Japan), Y. Nakai (Yukawa Institute for Theoretical Physics; Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan, ou_persistent22              
2Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society, ou_904549              

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 Zusammenfassung: 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 squared does not drastically change by taking ratios of gaugino masses of order one. The degeneracy of scalar masses for squarks and left-handed sleptons would be good to avoid the FCNC problem but that of right-handed slepton masses is weak. However, the overall size of right-handed slepton masses become larger when the bino becomes heavier. It is also pointed out that such region can be realized, and thus, that would be favorable to avoid the FCNC problem for soft scalar masses as well as A-terms.

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Sprache(n): eng - English
 Datum: 2010-09-27
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: eDoc: 499144
URI: http://arxiv.org/abs/1006.4042v2
DOI: 10.1007/JHEP09(2010)093
 Art des Abschluß: -

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Titel: Journal of High Energy Physics
  Alternativer Titel : JHEP
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 2010 (9) Artikelnummer: 093 Start- / Endseite: 1 - 17 Identifikator: -