In this work we address contributions from scalars to (g-2)_\mu. In order to explain the recently measured deviation by the BNL experiment on (g-2)_\mu, it is necessary that these scalars are either light or couple strongly with muons. Here we explore this last possibility. We show that a scalar with mass of the order of 10^2 GeV provides significant contribution to (g-2)_\mu if the Yukawa coupling is about 10^{-1}. We suggest scenarios where this comes about naturally.
@article{arxiv.hep-ph/0103083,
title = {Scalar scenarios contributing to (g-2)_mu with enhanced Yukawa couplings},
author = {C. A. de S. Pires and P. S. Rodrigues da Silva},
journal= {arXiv preprint arXiv:hep-ph/0103083},
year = {2009}
}
Comments
8 pages, 1 figure, uses macro axodraw.sty, improved text, typos corrected, version to appear in Phys. Rev. D