Non-decoupling two-loop corrections to (g-2)_\mu\ from fermion/sfermion loops in the MSSM
Abstract
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 \Delta\alpha\ and \Delta\rho, 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.
Cite
@article{arxiv.1309.0980,
title = {Non-decoupling two-loop corrections to (g-2)_\mu\ from fermion/sfermion loops in the MSSM},
author = {Helvecio Fargnoli and Christoph Gnendiger and Sebastian Passehr and Dominik Stöckinger and Hyejung Stöckinger-Kim},
journal= {arXiv preprint arXiv:1309.0980},
year = {2015}
}
Comments
14 pages, 6 figures, 5 tables, revtex; version published in Phys.Lett.B