Two-loop supersymmetric corrections to lepton anomalous magnetic and electric dipole moments

Feng, Tao; Li, Xue–Qian; Lin, Lin; Maalampi, J.; Song, He-Shan

doi:10.1103/physrevd.73.116001

Cited by 41 publications

(32 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the following we first discuss the logarithmic term, which can be assumed to be dominant like in the SM, and then we describe the computation of [63].…”

Section: Two-loop Corrections To Susy One-loop Diagramsmentioning

confidence: 99%

The muon magnetic moment and supersymmetry

Stöckinger

2006

J. Phys. G: Nucl. Part. Phys.

292

340

View full text Add to dashboard Cite

Abstract.The present review is devoted to the muon magnetic moment and its role in supersymmetry phenomenology. Analytical results for the leading supersymmetric one-and two-loop contributions are provided, numerical examples are given and the dominant tan β sign(µ)/M 2 SUSY behaviour is qualitatively explained. The consequences of the Brookhaven measurement are discussed. The 2σ deviation from the Standard Model prediction implies preferred ranges for supersymmetry parameters, in particular upper and lower mass bounds. Correlations with other observables from collider physics and cosmology are reviewed. We give, wherever possible, an intuitive understanding of each result before providing a detailed discussion.

show abstract

“…In the following we first discuss the logarithmic term, which can be assumed to be dominant like in the SM, and then we describe the computation of [63].…”

Section: Two-loop Corrections To Susy One-loop Diagramsmentioning

confidence: 99%

The muon magnetic moment and supersymmetry

Stöckinger

2006

J. Phys. G: Nucl. Part. Phys.

292

340

View full text Add to dashboard Cite

show abstract

“…However, it remains to be seen how one can naturally suppress phases in the first two generations while allowing them only in the third generation. The reader is also directed to several other works on two loop analyses of EDMs: (Chang et al, 1990(Chang et al, , 1991Degrassi et al, 2005;Feng et al, 2006Feng et al, , 2005Pilaftsis, 2002). Specifically, a complete account of all dominant 2-loop Barr-Zee type graphs in the CP violating MSSM is given in in (Pilaftsis, 2002).…”

Section: E Two Loop Contribution To Edmsmentioning

confidence: 99%

CPviolation from the standard model to strings

2008

View full text Add to dashboard Cite

A review of CP violation from the Standard Model to strings is given which includes a broad landscape of particle physics models, encompassing the non-supersymmetric 4D extensions of the standard model, and models based on supersymmetry, on extra dimensions, on strings and on branes. The supersymmetric models discussed include complex mSUGRA and its extensions, while the models based on extra dimensions include 5D models including models based on warped geometry. CP violation beyond the standard model is central to achieving the desired amount of baryon asymmetry in the universe via baryogenesis and leptogenesis. They also affect a variety of particle physics phenomena: electric dipole moments, g − 2, relic density and detection rates for neutralino dark matter in supersymmetric theories, Yukawa unification in grand unified and string based models, and sparticle production cross sections, and their decays patterns and signatures at hadron colliders. Additionally CP violations can generate CP even-CP odd Higgs mixings, affect the neutral Higgs spectrum and lead to phenomena detectable at colliders. Prominent among these are the CP violation effects in decays of neutral and charged Higgs bosons. Neutrino masses introduce new sources of CP violation which may be explored in neutrino factories in the future. Such phases can also enter in proton stability in unified models of particle interactions. The current experimental status of CP violation is discussed and possibilities for the future outlined.

show abstract

“…Their results are not completely known, but leading QED-logarithms [39], the full QED-corrections [40], and (tan β) 2 -enhanced corrections [41] have been carried out in Refs. [42][43][44][45]. All known contributions of class 2L(b) can be significant corrections to the SUSY one-loop contributions.…”

Section: Overview Of Susy Contributions To a µmentioning

confidence: 99%

Non-decoupling two-loop corrections to (g−2)μ from fermion/sfermion loops in the MSSM

Fargnoli¹,

Gnendiger²,

Paßehr³

et al. 2013

Physics Letters B

View full text Add to dashboard Cite

Two-loop contributions to the muon (g − 2) from fermion/sfermion loops in the MSSM are presented, and an overview of the full MSSM prediction for (g − 2) is given with emphasis on the behaviour in scenarios which are compatible with LHC data, including scenarios with large mass splittings. Compared to all previously known two-loop contributions, the fermion/sfermion-loop contributions can yield the largest numerical results. The new contributions contain the important universal quantities ∆α and ∆ρ, and for large sfermion masses the contributions are non-decoupling and logarithmically enhanced. We find up to 15% (30%) corrections for sfermion masses in the 20 TeV (1000 TeV) range.

show abstract

Two-loop supersymmetric corrections to lepton anomalous magnetic and electric dipole moments

Cited by 41 publications

References 42 publications

The muon magnetic moment and supersymmetry

The muon magnetic moment and supersymmetry

CPviolation from the standard model to strings

Non-decoupling two-loop corrections to (g−2)μ from fermion/sfermion loops in the MSSM

Contact Info

Product

Resources

About