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Bari, 4-5 th November. Full list of cuts for VBF H-> , MSSM H->  can be found on https://twiki.cern.ch/twiki/bin/view/LHCPhysics/Tautau.

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Presentation on theme: "Bari, 4-5 th November. Full list of cuts for VBF H-> , MSSM H->  can be found on https://twiki.cern.ch/twiki/bin/view/LHCPhysics/Tautau."— Presentation transcript:

1 Bari, 4-5 th November

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5 Full list of cuts for VBF H-> , MSSM H->  can be found on https://twiki.cern.ch/twiki/bin/view/LHCPhysics/Tautau

6 Example of NLO vs PYTHIA comparison from the past: bbh (I) b-quark was taken after gluon radiation PYTHIA gg->bbH describes p T b spectra at 4F NLO bbH within 5-10 %; Kinnunen, Lehti, Moortgat, Nikitenko, Spira. Eur.Phys.J. C40n5:23-32,2005

7 Example of NLO vs PYTHIA comparison from the past: bbh (II) b-jet was build from partons with simple cone 0.7 algorithm Campbell, Kalinowski and Nikitenko; Les Houches 2005 hep-ph/0604120

8 Example of PYTHIA vs Sherpa comparison from the past : bbh PhD thesis of Markus Warsinsky 2008

9 p T Higgs in MSSM gg->  Langenegger, Spira, Starodumov, Trub. hep-ph/0604156: – The full quark mass dependence has to be taken into account – For large tan  the bottom quark loops must not be omitted – The calculations has to be performed at the highest possible order of  s * * The full SUSY-QCD corrections with full mass dependence of the loop particles are in progress

10 BACKUP

11 Proposal on how to compare  exp (  /Z+b) with  th (  /Z+b) Cuts used in analysis: –Exp. cut: p T b > p T exp cut –Gen cut at LO ME+PS : p T b > p T gen cut –Th. cut for  th at NLO : p T b > p T th cut The way could be: –use Gen cut = Th.cuts (p T gen cut = p T th cut ) –use Exp.cut > Th. Cuts p T exp cut > p T th cut + ~ 2 x  jet resolution –go from p Texp to p Tth cuts using MC; correct difference in acceptance (p T,  ) between NLO and ME+PS using factor: R = [  th exp.cuts /  th th.cuts ] / [  LO+PS exp.cuts /  LO+PS th.cuts ], –for LO ME+PS apply p T /  cuts on parton b-jets


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