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Flavour geometry and effective Yukawa couplings in the MSSM

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Flavour geometry and effective Yukawa couplings in the MSSM

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dc.contributor.author Ellis, John
dc.contributor.author Hodgkinson, Robert N.
dc.contributor.author Lee, Jae Sik
dc.contributor.author Pilaftsis, Apostolos
dc.date.accessioned 2014-10-13T12:22:20Z
dc.date.available 2014-10-13T12:22:20Z
dc.date.issued 2010
dc.identifier.citation Ellis, John Hodgkinson, Robert N. Lee, Jae Sik Pilaftsis, Apostolos 2010 Flavour geometry and effective Yukawa couplings in the MSSM Journal of High Energy Physics 02 2 016-1 016-35
dc.identifier.uri http://hdl.handle.net/10550/39155
dc.description.abstract We present a new geometric approach to the flavour decomposition of an arbitrary soft supersymmetry-breaking sector in the MSSM. Our approach is based on the geometry that results from the quark and lepton Yukawa couplings, and enables us to derive the necessary and sufficient conditions for a linearly-independent basis of matrices related to the completeness of the internal [SU(3) circle times U(1)](5) flavour space. In a second step, we calculate the effective Yukawa couplings that are enhanced at large values of tan beta for general soft supersymmetry-breaking mass parameters. We highlight the contributions due to non-universal terms in the flavour decompositions of the sfermion mass matrices. We present numerical examples illustrating how such terms are induced by renormalization-group evolution starting from universal input boundary conditions, and demonstrate their importance for the flavour-violating effective Yukawa couplings of quarks.
dc.language.iso eng
dc.relation.ispartof Journal of High Energy Physics, 2010, vol. 02, num. 2, p. 016-1-016-35
dc.subject Física
dc.title Flavour geometry and effective Yukawa couplings in the MSSM
dc.type journal article es_ES
dc.date.updated 2014-10-13T12:22:20Z
dc.identifier.doi 10.1007/JHEP02(2010)016
dc.identifier.idgrec 065438
dc.rights.accessRights open access es_ES

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