Off-shell Higgs signal and total width determination at the LHC
Abstract
A substantial off-shell Higgs boson signal in the gluon fusion and vector boson fusion H --> ZZ and H --> WW channels at the Large Hadron Collider (LHC) facilitates a novel, complementary approach to constraining the total Higgs width Gamma_H. With LHC Run 1 data, experimental analyses by CMS and ATLAS find Gamma_H < 5.4 Gamma_H,SM and Gamma_H < [4.5,7.5] Gamma_H,SM at 95% confidence level, respectively, where Gamma_H,SM is the expected value in the Standard Model at the measured Higgs boson mass. I review the theoretical basis of the new approach and discuss its significance in comparison to other methods to bound and measure the Higgs width at the LHC and future colliders.
Cite
@article{arxiv.1502.02581,
title = {Off-shell Higgs signal and total width determination at the LHC},
author = {Nikolas Kauer},
journal= {arXiv preprint arXiv:1502.02581},
year = {2015}
}
Comments
8 pages, 6 figures, to appear in the proceedings of Frontiers of Fundamental Physics 14, 15-18 July 2014, Aix Marseille University Saint-Charles Campus, Marseille, France; updated references and figure 4