Higher-order QCD effects in the h ---> ZZ search channel at the LHC
(2008) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. B662, p. 353-359 (2008)
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- (en) We present a consistent analysis of the signal as well as the irreducible background for the search of the SM Higgs boson in the ZZ decay channel at the LHC. Soft-gluons effects are resummed up to next-to-leading logarithmic accuracy, and the results are compared to those obtained with fixed order calculations and the MC@NLO event generator. The soft-gluon effects are typically modest but should be taken into account when precise predictions are demanded. Our results show that the signal over background ratio can be significantly enhanced with a cut on the transverse momentum pt(ZZ) of the ZZ pair. We also introduce a fully transverse angular variable that could give information about the CP nature of the Higgs boson. Comment: 12 pages, 8 figures. Discussion on scale uncertainties added
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Frederix, R., & Grazzini, M. (2008). Higher-order QCD effects in the h ---> ZZ search channel at the LHC. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, B662, 353-359. https://doi.org/10.1016/j.physletb.2008.03.030 (Original work published 2008)