Gen 5 mc validation top mass template
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Gen 5 MC validation… ( top mass template ). Rec. Mtop - Pythia 5.3.2 vs 4.11.1 (-0.9) - Herwig 5.3.1 vs 4.11.1 (-0.7) - Herwig 5.3.2 vs 4.11.1 (+3.3) - but Mtop=178 for 5.3.2 Pythia and Herwig What is wrong in Pythia 5.3.2? - Herwig (Mtop: 175->178) 2% up, Pt(W,b)

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Gen 5 MC validation… ( top mass template )

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Gen 5 mc validation top mass template

Gen 5 MC validation…( top mass template )

  • Rec. Mtop

    - Pythia 5.3.2 vs 4.11.1 (-0.9)

    - Herwig 5.3.1 vs 4.11.1 (-0.7)

    - Herwig 5.3.2 vs 4.11.1 (+3.3)

    - but Mtop=178 for 5.3.2 Pythia and Herwig

  • What is wrong in Pythia 5.3.2?

    - Herwig (Mtop: 175->178)

    2% up, Pt(W,b)

    - Pythia (Mtop: 175->178)

    2% up for Pt(b), 2% down for Pt(W)

Mtop=170.6

Mtop=173.9

Mtop=170.6

Mtop=169.9

Mtop=170.9

Mtop=170.0


Gen 5 top mass tempalte anal herwig

Gen 5: Top mass tempalte anal.(Herwig)

b-tag eff. is reduced by 15%,

Does this mean that scale factor is now closed to 1?


Herwig 6 504 photos for10k ttbar events

Herwig 6.504 + Photos( for10k ttbar events)

t->bg

uds

W(mainly lepton channel)


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