Large Higgs Boson Exchange Contribution in Three-Body Neutralino Decays
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
We show that the Higgs boson exchange contribution can be large in three-body decays of neutralinos even in the case of small tan(beta). This enlarges the branching ratios for the decays neutralino_2 -> neutralino_1 b \bar{b} and neutralino_2 -> neutralino_1 tau- tau+. This is the case in the region of the parameter space where the two lightest neutralinos are gaugino-like, the sfermions are heavier than 300 GeV, and m_A0 = 200 GeV or smaller.
Keywords
Cite
@article{arxiv.hep-ph/9907377,
title = {Large Higgs Boson Exchange Contribution in Three-Body Neutralino Decays},
author = {A. Bartl and W. Majerotto and W. Porod},
journal= {arXiv preprint arXiv:hep-ph/9907377},
year = {2009}
}
Comments
16 pages, 7 figures included as PS-files