Fiducial cross sections for the four-lepton decay mode in Higgs-plus-jet production up to NNLO QCD

Chen, X. (0000 0004 1937 0650, grid.7400.3, Department of Physics, University of Zürich, CH-8057, Zürich, Switzerland) ; Gehrmann, T. (0000 0004 1937 0650, grid.7400.3, Department of Physics, University of Zürich, CH-8057, Zürich, Switzerland) ; Glover, E. (0000 0000 8700 0572, grid.8250.f, Institute for Particle Physics Phenomenology, Department of Physics, University of Durham, Durham, DH1 3LE, U.K.) ; Huss, A. (0000 0001 2156 142X, grid.9132.9, Theoretical Physics Department, CERN, 1211, Geneva 23, Switzerland)

11 July 2019

Abstract: The four-lepton decay mode of the Higgs boson allows for a clean kinematic reconstruction, thereby enabling precision studies of the Higgs boson properties and of its production dynamics. We compute the NNLO QCD corrections to fiducial cross sections relevant to this decay mode in the gluon-fusion channel producing a Higgs boson in association with a hadronic jet, and study the impact of the QCD corrections on the fiducial acceptance factors in inclusive Higgs and Higgs-plus-jet production. We investigate in detail the different definitions used in the ATLAS and CMS measurements to define the fiducial cross sections. Differences in the lepton isolation prescription are found to have a sizeable impact on the higher order corrections to the fiducial acceptance factors.


Published in: JHEP 1907 (2019) 052 DOI: 10.1007/JHEP07(2019)052
arXiv: 1905.13738
License: CC-BY-4.0



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