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arXiv · 1910.02082

An approach to constraining the Higgs width at the LHC and HL-LHC

Philip Coleman Harris·Dylan Sheldon Rankin·Cristina Mantilla Suarez
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Abstract

Despite the discovery of the Higgs boson decay in five separate channels many parameters of the Higgs boson remain largely unconstrained. In this paper, we present a new approach to constraining the Higgs total width by requiring the Higgs to be resolved as a single high p$_T$ jet and measuring the inclusive Higgs boson cross section. To measure the inclusive Higgs boson cross section, we rely on new approaches from machine learning and a modified jet reconstruction. This approach is found to be complementary to the existing off-shell width measurement and, with the full HL-LHC luminosity, is capable of yielding similar sensitivity to the off-shell projections. We outline the theoretical and experimental limitations and present a path towards making this approach a truly model-independent measurement of the Higgs boson total width.

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Philip Coleman Harris, Dylan Sheldon Rankin, Cristina Mantilla Suarez. 2019-10-04. An approach to constraining the Higgs width at the LHC and HL-LHC. https://arxiv.org/abs/1910.02082

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