Tan(beta)-enhanced supersymmetric corrections to the anomalous magnetic moment of the muon
arXiv:0808.1530 · doi:10.1103/PhysRevD.79.013010
Abstract
We report on a two-loop supersymmetric contribution to the magnetic moment (g-2)_mu of the muon which is enhanced by two powers of tan(beta). This contribution arises from a shift in the relation between the muon mass and Yukawa coupling and can increase the supersymmetric contribution to (g-2)_mu sizably. As a result, if the currently observed 3 sigma deviation between the experimental and SM theory value of (g-2)_mu is analyzed within the Minimal Supersymmetric Standard Model (MSSM), the derived constraints on the parameter space are modified significantly: If (g-2)_mu is used to determine tan(beta) as a function of the other MSSM parameters, our corrections decrease tan(beta) by roughly 10% for tan(beta)=50.
4 pages, 1 figure
References in corpus (12)
- Muon g-2: Review of Theory and Experiment
- Improved predictions for g-2 of the muon and α_{\rm QED}(M_Z^2)
- The Muon Magnetic Moment and Supersymmetry
- Update of the e^+e^-\toπ^+π^- cross section measured by SND detector in the energy region 400<\sqrt{s}<1000 MeV
- Measurement of the e+e- -> pi+pi- cross section with the CMD-2 detector in the 370-520 MeV c.m. energy range
- The hadronic contribution to (g-2) of the muon
- Implications for the Constrained MSSM from a new prediction for b to s gamma
- Bayesian Selection of sign(mu) within mSUGRA in Global Fits Including WMAP5 Results
- The Supersymmetric Parameter Space in Light of B-physics Observables and Electroweak Precision Data
- The Dipion Mass Spectrum In e+e- Annihilation and tau Decay: A Dynamical (rho0, omega, phi) Mixing Approach
- The two-loop supersymmetric corrections to lepton anomalous magnetic and electric dipole moments
- B-Physics Observables and Electroweak Precision Data in the CMSSM, mGMSB and mAMSB