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ggH contamination in VBF phase space

The technique of the study

The gluon fusion Higgs production enters the VBF phase space because of perturbative effects of the Higgs + 0jets generation, and because of higher order diagrams. A calculation is being performed with MCFM for the contribution of Higgs + 2jets at NLO, after the selections listed here below.

selections applied

cut CMS ATLAS common
tag jets higest pT higest pT higest pT
jets num 2 jets w pT > 30 GeV 2 jets w pT > 25 GeV ?
jets eta < 4.5 < 4.5 < 4.5
Deta_jj > 3.5 > 3.8 ?
M_jj > 450 GeV > 500 GeV ?
etaProd_jj -- <0 ?
additional jets veto no other jets with pT > 30 GeV between tag jets no other jets with pT > 25 GeV and eta < 3.2 ?
leptons pT 20, 10 GeV 25, 15 GeV ?
leptons eta < 2.5 < 2.5 < 2.5

cross sections obtained with POWHEG

results with ATLAS cuts

results with CMS cuts

people involved from ATLAS (A), CMS (C), theory (T)

Sara Diglio (A), Biagio Di Micco (A), Raffaele Gerosa (C), Pietro Govoni (C), Andrea Massironi (C), Giulia Zanderighi (T)

-- PietroGovoni - 11-Nov-2011

Topic attachments
I Attachment History Action Size Date Who Comment
Unknown file formattemp powheg.input.TEMP r1 manage 3.9 K 2011-11-22 - 14:26 PietroGovoni  
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Topic revision: r3 - 2011-11-22 - PietroGovoni
 
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