Institute for Theoretical Particle Physics (TTP)
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preprints:2008:ttp08-35 [2016/03/17 11:03] (current) – created - external edit 127.0.0.1
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 +====== TTP08-35 Tan-beta-enhanced supersymmetric corrections to the anomalous magnetic moment of the muon ====== 
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 +   <hidden TTP08-35  Tan-beta-enhanced supersymmetric corrections to the anomalous magnetic moment of the muon > 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.  
 + </hidden> 
 +|**Schedar Marchetti, Susanne Mertens, Ulrich Nierste, Dominik St&ouml;ckinger**  |  
 +|**  Phys.Rev.  D79 013010 2009  **  | 
 +| {{preprints:2008:ttp08-35.pdf|PDF}} {{preprints:2008:ttp08-35.ps|PostScript}} [[http://arxiv.org/abs/0808.1530|arXiv]]   | 
 +| |