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2023:groups:smhiggs:ggf-background-vbf:start [2023/06/16 18:34] alexander.huss |
2023:groups:smhiggs:ggf-background-vbf:start [2023/06/20 09:42] (current) saptaparna.bhattacharya |
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* Study top mass dependence at [[https://arxiv.org/abs/2110.06953|NLO_FTapprox]] | * Study top mass dependence at [[https://arxiv.org/abs/2110.06953|NLO_FTapprox]] | ||
* Compare to impact of [[https://indico.ph.ed.ac.uk/event/118/contributions/2401/attachments/1273/1802/RADCOR23_Jaskiewicz_talk.pdf|HEJ]] (see slide 6) | * Compare to impact of [[https://indico.ph.ed.ac.uk/event/118/contributions/2401/attachments/1273/1802/RADCOR23_Jaskiewicz_talk.pdf|HEJ]] (see slide 6) | ||
+ | * in HH, the effects were more sizeable [https://arxiv.org/pdf/1803.02463.pdf]; can we understand what differs for H+2j? | ||
+ | * A possible simple prescription for Powheg: use LO ratio (exact/HTL) evaluated on Born-projected kinematics as a first approximation. | ||
== Setup == | == Setup == | ||
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+ | Underlying event tunes in CMS: | ||
+ | *'Tune:preferLHAPDF = 2', | ||
+ | *'Main:timesAllowErrors = 10000', | ||
+ | *'Check:epTolErr = 0.01', | ||
+ | *'Beams:setProductionScalesFromLHEF = off', | ||
+ | *'SLHA:minMassSM = 1000.', | ||
+ | *'ParticleDecays:limitTau0 = on', | ||
+ | *'ParticleDecays:tau0Max = 10', | ||
+ | *'ParticleDecays:allowPhotonRadiation = on', | ||
+ | |||
+ | *'Tune:pp 14', | ||
+ | *'MultipartonInteractions:ecmPow=0.03344', | ||
+ | *'MultipartonInteractions:bProfile=2', | ||
+ | *'MultipartonInteractions:pT0Ref=1.41', | ||
+ | *'MultipartonInteractions:coreRadius=0.7634', | ||
+ | *'MultipartonInteractions:coreFraction=0.63', | ||
+ | *'ColourReconnection:range=5.176', | ||
+ | *'SigmaTotal:zeroAXB=off', | ||
+ | *'SpaceShower:alphaSorder=2', | ||
+ | *'SpaceShower:alphaSvalue=0.118', | ||
+ | *'SigmaProcess:alphaSvalue=0.118', | ||
+ | *'SigmaProcess:alphaSorder=2', | ||
+ | *'MultipartonInteractions:alphaSvalue=0.118', | ||
+ | *'MultipartonInteractions:alphaSorder=2', | ||
+ | *'TimeShower:alphaSorder=2', | ||
+ | *'TimeShower:alphaSvalue=0.118', | ||
+ | *'SigmaTotal:mode = 0', | ||
+ | *'SigmaTotal:sigmaEl = 22.08', | ||
+ | *'SigmaTotal:sigmaTot = 101.037', | ||
+ | *'PDF:pSet=LHAPDF6:NNPDF31_nnlo_as_0118', | ||