Decoupling behaviour of O(m_t^4) corrections to the h^0 self-couplings
High Energy Physics - Phenomenology
2009-11-07 v3
Abstract
The decoupling behaviour of the leading one-loop Yukawa-coupling contributions of O(m_t^4) to the lightest MSSM Higgs boson self-couplings, when the top-squarks are heavy as compared to the electroweak scale, are discussed. As shown analytically and numerically, the large corrections can almost completely be absorbed into the h^0-boson mass and therefore, the h^0 self-couplings remain similar to the coupling of the SM Higgs boson for a heavy top-squark sector.
Cite
@article{arxiv.hep-ph/0210108,
title = {Decoupling behaviour of O(m_t^4) corrections to the h^0 self-couplings},
author = {Wolfgang Hollik and Siannah Penaranda},
journal= {arXiv preprint arXiv:hep-ph/0210108},
year = {2009}
}
Comments
LaTeX, 5 pages, 3 figures included; typos corrected. Uses npb.sty. Talk given by S.P. at the RADCOR 2002/Loops and Legs in Quantum Field Theory 2002, September 8 to 13, Kloster Banz, Germany