Solving the SUSY CP problem with flavor breaking F-terms

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Supersymmetric flavor models for the radiative generation of fermion masses offer an alternative way to solve the SUSY-CP problem. We assume that the supersymmetric theory is flavor and CP conserving. CP violating phases are associated to the vacuum expectation values of flavor violating susy-breaking fields. As a consequence, phases appear at tree level only in the soft supersymmetry breaking matrices. Using a U(2) flavor model as an example we show that it is possible to generate radiatively the first and second generation of quark masses and mixings as well as the CKM CP phase. The one-loop supersymmetric contributions to EDMs ... continued below

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Diaz-Cruz, Lorenzo J. & Ferrandis, Javier May 11, 2005.

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Supersymmetric flavor models for the radiative generation of fermion masses offer an alternative way to solve the SUSY-CP problem. We assume that the supersymmetric theory is flavor and CP conserving. CP violating phases are associated to the vacuum expectation values of flavor violating susy-breaking fields. As a consequence, phases appear at tree level only in the soft supersymmetry breaking matrices. Using a U(2) flavor model as an example we show that it is possible to generate radiatively the first and second generation of quark masses and mixings as well as the CKM CP phase. The one-loop supersymmetric contributions to EDMs are automatically zero since all the relevant parameters in the lagrangian are flavor conserving and as a consequence real. The size of the flavor and CP mixing in the susy breaking sector is mostly determined by the fermion mass ratios and CKM elements. We calculate the contributions to {epsilon}, {epsilon}' and to the CP asymmetries in the B decays to {psi}K{sub s}, {phi}K{sub s}, {eta}'K{sub s} and X{sub s}{gamma}. We analyze a case study with maximal predictivity in the fermion sector. For this worst case scenario the measurements of {Delta}m{sub K}, {Delta}m{sub B} and {epsilon} constrain the model requiring extremely heavy squark spectra.

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  • Journal Name: Physical Review, D (Particles Fields); Journal Volume: 72; Related Information: Journal Publication Date: 2005

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  • Report No.: LBNL--57358
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 878694
  • Archival Resource Key: ark:/67531/metadc875540

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  • May 11, 2005

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  • Sept. 21, 2016, 2:29 a.m.

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  • Sept. 30, 2016, 12:47 p.m.

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Diaz-Cruz, Lorenzo J. & Ferrandis, Javier. Solving the SUSY CP problem with flavor breaking F-terms, article, May 11, 2005; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc875540/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.