Ellis J, Olive KA, Velasco-Sevilla L. Maximal sfermion flavour violation in super-GUTs.
THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2016;
76:562. [PMID:
28316488 PMCID:
PMC5335576 DOI:
10.1140/epjc/s10052-016-4398-9]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 09/25/2016] [Indexed: 06/06/2023]
Abstract
We consider supersymmetric grand unified theories with soft supersymmetry-breaking scalar masses [Formula: see text] specified above the GUT scale (super-GUTs) and patterns of Yukawa couplings motivated by upper limits on flavour-changing interactions beyond the Standard Model. If the scalar masses are smaller than the gaugino masses [Formula: see text], as is expected in no-scale models, the dominant effects of renormalisation between the input scale and the GUT scale are generally expected to be those due to the gauge couplings, which are proportional to [Formula: see text] and generation independent. In this case, the input scalar masses [Formula: see text] may violate flavour maximally, a scenario we call MaxSFV, and there is no supersymmetric flavour problem. We illustrate this possibility within various specific super-GUT scenarios that are deformations of no-scale gravity.
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