We consider the ratio between the double and single Higgs production cross sections and examine the prospect of measuring the trilinear Higgs self-coupling using this observable. Such a ratio has a reduced theoretical (scale) uncertainty than the double Higgs cross section. We find that with 600/fb, the 14 TeV LHC can constraint the trilinear Higgs self coupling to be positive, and with 3000/fb one could measure it with a +30 % {-20 %}) accuracy.
@article{arxiv.1309.3805,
title = {Measuring the Higgs boson self-coupling at the LHC using ratios of cross sections},
author = {Florian Goertz and Andreas Papaefstathiou and Li Lin Yang and José Zurita},
journal= {arXiv preprint arXiv:1309.3805},
year = {2013}
}
Comments
4 pages, 2 figures, to appear in the proceedings of the 25th "Rencontres de Blois", Blois, France, May 27-31, 2013