1999/06/30 by S. Pokorski, J. Rosiek, C.A. Savoy +1 · 4 citations
Physics and Astronomy · #Electric dipole moment #Flavour #Neutrino Physics Research #Neutron #Particle physics theoretical and experimental studies #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Superpartner #Supersymmetry #Symmetry (geometry) #Symmetry breaking #hep-ph
paper · pdf · doi:10.1016/s0550-3213(99)00628-8
published as Nucl.Phys. B570 (2000) 81-116 · 38 pages, 22 figures, uses epsfig.sty, axodraw.sty (not included); error in sign of gluino contribution to EDM of u and d quarks and few figures corrected, important conclusions unchanged
arxiv created 1999/10/06 · openalex publication_date 2000/03/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In the unconstrained MSSM, we reanalyze the constraints on the phases of supersymmetric flavour conserving couplings that follow from the electron and neutron electric dipole moments (EDM). We find that the constraints become weak if at least one exchanged superpartner mass is >O(1 TeV) or if we accept large cancellations among different contributions. However, such cancellations have no evident underlying symmetry principle. For light superpartners, models with small phases look like the easiest solution to the experimental EDM constraints. This conclusion becomes stronger the larger is the value of tanβ. We discuss also the dependence of εK, ΔmB and b→ sγ decay on those phases.