MSSM predictions for the electric dipole moment of the 199Hg atom

Falk, Toby; Olive, Keith A.; Pospelov, Maxim; Roiban, Radu

doi:10.1016/s0550-3213(99)00471-x

Cited by 166 publications

(175 citation statements)

References 44 publications

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“…This interference leads to suppression of the annihilation cross section, and the relic density is enhanced to fit into the WMAP-allowed region for tan β = 50. The phase θ M 1 is constrained by experimentel constraints on the EDMs of the electron, the neutron [51][52][53] and 199 Hg [54]. In the present work, we do not perform a complete analysis of the EDM constraints, but only present results for the electron EDM.…”

Section: Numerical Resultsmentioning

confidence: 99%

Publisher's Note: Relic density and elastic scattering cross sections of the neutralino in the minimal supersymmetric standard model withCP-violating phases [Phys. Rev. D70, 055011 (2004)]

Nihei¹,

Sasagawa²

2004

Phys. Rev. D

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We study the neutralino relic density and the neutralino-proton elastic scattering cross sections in the minimal supersymmetric standard model (MSSM) with CP-violating phases. We include all the final states to the neutralino pair annihilation cross section at the tree level, taking into account the mixing between the CP-even and CP-odd neutral Higgs fields. We show that variations of the relic density and the elastic scattering cross sections with the CP-violating phases are significant. In particular, interferences between the major contributions in the neutralino annihilation cross section can cause considerable enhancement of the relic density. *

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Section: Numerical Resultsmentioning

confidence: 99%

Publisher's Note: Relic density and elastic scattering cross sections of the neutralino in the minimal supersymmetric standard model withCP-violating phases [Phys. Rev. D70, 055011 (2004)]

Nihei¹,

Sasagawa²

2004

Phys. Rev. D

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“…For example, the electron EDM result (which is free of hadronic theory uncertainties) places tight constraints on the value of θ μ , but cancellations among the various CP-violating SUSY processes that contribute make it relatively insensitive to θ A . However, tight constraints are placed on θ A by the neutron and especially the 199 Hg EDM results, and only a tiny region of the parameter space remains viable [60,63].…”

Section: Edms In Supersymmetric Modelsmentioning

confidence: 99%

Techniques used to search for a permanent electric dipole moment of the199Hg atom and the implications forCPviolation

et al. 2013

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Copyright and reuse:Sussex Research Online is a digital repository of the research output of the University.Copyright and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable, the material made available in SRO has been checked for eligibility before being made available.Copies of full text items generally can be reproduced, displayed or performed and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. We discuss in detail the search for a permanent electric dipole moment (EDM) of the 199 Hg atom reported by Griffith et al. [Phys. Rev. Lett. 102, 101601 (2009)]. The upper bound, d( 199 Hg) < 3.1 × 10 −29 e cm (95% C.L.), is a factor of 7 improvement over the best previous EDM limit for 199 Hg, provides the most sensitive probe to date for EDMs in diamagnetic atoms, and sets new limits on time-reversal symmetry violation in extensions to the standard model. This paper provides extensive discussion of the techniques used to search for the 199 Hg EDM and the implications of the new 199 Hg EDM limit for CP violation in elementary particle interactions.

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“…[24,31]). 6 The bounds from neutron and mercury EDMs are subject to large theoretical uncertainties [32], and we have used conservative estimates. The constraints from (ǫ ′ /ǫ) K and b → sγ also lead to bounds on |Im(δ d LR ) 12, 21 | and…”

Section: The Superpotential Flavor Problemmentioning

confidence: 99%

Naturally flavorful supersymmetry at the LHC

Nomura

Stolarski

2008

Phys. Rev. D

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The suppression of flavor and CP violation in supersymmetric theories may be due to the mechanism responsible for the structure of the Yukawa couplings. We study model independently the compatibility between low energy flavor and CP constraints and observability of superparticles at the LHC, assuming a generic correlation between the Yukawa couplings and the supersymmetry breaking parameters. We find that the superpotential operators that generate scalar trilinear interactions are generically problematic. We discuss several ways in which this tension is naturally avoided. In particular, we focus on several frameworks in which the dangerous operators are naturally absent. These frameworks can be combined with many theories of flavor, including those with (flat or warped) extra dimensions, strong dynamics, or flavor symmetries. We show that the resulting theories can avoid all the low energy constraints while keeping the superparticles light. The intergenerational mass splittings among the sfermions can reflect the structure of the underlying flavor theory, and can be large enough to be measurable at the LHC. Detailed observations of the superparticle spectrum may thus provide new handles on the origin of the flavor structure of the standard model.

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MSSM predictions for the electric dipole moment of the 199Hg atom

Cited by 166 publications

References 44 publications

Publisher's Note: Relic density and elastic scattering cross sections of the neutralino in the minimal supersymmetric standard model withCP-violating phases [Phys. Rev. D70, 055011 (2004)]

Publisher's Note: Relic density and elastic scattering cross sections of the neutralino in the minimal supersymmetric standard model withCP-violating phases [Phys. Rev. D70, 055011 (2004)]

Techniques used to search for a permanent electric dipole moment of the199Hg atom and the implications forCPviolation

Naturally flavorful supersymmetry at the LHC

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