EDM constraints in supersymmetric theories

Abel, Steven; Khalil, S.; Lebedev, O. V.

doi:10.1016/s0550-3213(01)00233-4

Cited by 279 publications

(256 citation statements)

References 84 publications

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“…Second, certain two-loop contributions are then enhanced [342,343,344,345] which do not decouple when the sfermions are heavy. ‡ Within each of these scenarios there also are particularly strong constraints arising from the atomic EDMs such as the mercury EDM [347], which appear to rule out many of the "cancellation" models constructed so far [348,341,349]. However, there are unavoidable theoretical uncertainties involved in the determination of the hadronic EDMs and the atomic EDMs (see e.g.…”

Section: Cp Violation and Electric Dipole Momentsmentioning

confidence: 99%

“…The EDM constraints on this phase vary in the literature depending on how the uncertainties inherent in the atomic and hadronic EDMs are implemented, as discussed in Section 5.2.2, resulting in various boundaries of the MSSM parameter space with sufficient electroweak baryogenesis. For example, using the MSSM EDM analysis of [348] (which yields the strongest bound on φ µ + φ Ma ≤ 10 −2 at the GUT scale for sparticle masses consistent with naturalness) leads to the conclusion [629,631] that the O(10 −1 ) phase required for baryogenesis is only possible in models with most superpartner masses above the TeV range. However, the EDM bounds on this phase presented in [349] are about an order of magnitude less stringent, which may alleviate the restrictions on the MSSM parameter space somewhat in the case of light superpartner masses.…”

Section: Valid Mssm Parameter Spacementioning

confidence: 99%

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The soft supersymmetry-breaking Lagrangian: theory and applications

Chung

Everett

Kane³

et al. 2005

Physics Reports

415

339

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After an introduction recalling the theoretical motivation for low energy (100 GeV to TeV scale) supersymmetry, this review describes the theory and experimental implications of the soft supersymmetry-breaking Lagrangian of the general minimal supersymmetric standard model (MSSM). Extensions to include neutrino masses and nonminimal theories are also discussed. Topics covered include models of supersymmetry breaking, phenomenological constraints from electroweak symmetry breaking, flavor/CP violation, collider searches, and cosmological constraints including dark matter and implications for baryogenesis and inflation.

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Section: Cp Violation and Electric Dipole Momentsmentioning

confidence: 99%

Section: Valid Mssm Parameter Spacementioning

confidence: 99%

The soft supersymmetry-breaking Lagrangian: theory and applications

Chung

Everett

Kane³

et al. 2005

Physics Reports

415

339

View full text Add to dashboard Cite

show abstract

“…The mass insertion (δ d LR ) 22 , which is severely constrained by the experimental limit on the mercury EDM [15]:…”

Section: Squark Mixing: Ll Versus Lr Mixingmentioning

confidence: 99%

Probing flavor structure in supersymmetric theories

Khalil

2005

Phys. Rev. D

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We analyze the possibility of probing the supersymmetric flavor structure through the constraints of the K and B meson systems and those of the electric dipole moments. We show that combining these constraints would favor SUSY models with large flavor mixing either in LR(RL) or LL but with a very small RR and intermediate/large tan β. Large LR mixing requires specific patterns for trilinear A-terms, while LL mixing seems quite natural and easier to obtain. We present an example for this class of models and show how it can accommodate the current CP asymmetries experimental results.

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“…The non-observation of the EDMs imposes strong constraints on the SUSY phases, forcing them to be very small. This is the so-called SUSY CP problem and many solutions have been proposed to overcome it [4,5]. SCPV is an attractive approach to the SUSY CP problem, since all the couplings of the Lagrangian are real, due to the imposition of CP invariance at the Lagrangian level.…”

Section: Introductionmentioning

confidence: 99%

Spontaneous CP violation in a SUSY model with a complex CKM

Branco¹,

Emmanuel-Costa²,

Romão³

2006

Physics Letters B

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It is pointed out that the recent measurement of the angle γ of the unitarity triangle, providing irrefutable evidence for a complex Cabibbo-Kobayashi-Maskawa (CKM) matrix, presents a great challenge for supersymmetric models with spontaneous CP violation. We construct a new minimal extension of the minimal supersymmetric standard model (MSSM), with spontaneous CP breaking, which leads to a complex CKM matrix, thus conforming to present experimental data. This is achieved through the introduction of two singlet chiral superfields and a vector-like quark chiral superfield which mixes with the standard quarks. A Z 3 symmetry is introduced in order to have a potential solution to the strong CP problem.

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EDM constraints in supersymmetric theories

Cited by 279 publications

References 84 publications

The soft supersymmetry-breaking Lagrangian: theory and applications

The soft supersymmetry-breaking Lagrangian: theory and applications

Probing flavor structure in supersymmetric theories

Spontaneous CP violation in a SUSY model with a complex CKM

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