Next-to-leading-order uncertainties inHiggs+2jets from gluon fusion
作者： Shireen Gangal , Frank J. Tackmann
DOI: 10.1103/PHYSREVD.87.093008
关键词: Higgs boson 、 Gluon 、 Physics 、 Boson 、 Atlas (anatomy) 、 Reduction (mathematics) 、 Particle physics 、 Nuclear physics 、 Perturbation theory (quantum mechanics) 、 Vector boson 、 Jet (particle physics) 、 Nuclear and High Energy Physics
摘要: A central ingredient in establishing the properties of newly discovered Higgs-like boson is to isolate its production via vector fusion (VBF). With typical experimental selection cuts, VBF sample contaminated by a 25% fraction from Higgs + 2 jet gluon (ggF) which has large perturbative uncertainties. We perform detailed study uncertainties NLO predictions for pp -> H+2 jets ggF used ATLAS and CMS collaborations, with cuts their current H gamma analyses. discuss detail application so-called "ST method" estimating fixed-order this case, also consider generalizations it. Qualitatively, our results apply equally other decay channels similar cuts. Typical selections include indirect restrictions or explicit vetoes on additional activity, primarily reduce non-Higgs backgrounds. find that such have be chosen carefully are not necessarily beneficial purpose distinguishing between modes, since modest reduction relative contamination can easily overwhelmed quickly increasing
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