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Repository for work on top quark coupling measurements

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TopEFT

Repository for work on top quark coupling measurements

Gridpacks:

Code taken from the TTXPheno/gridpacks repository. Cards available there!
Available gridpacks, pkl files, customize cards and STDOUTs stored at:

/afs/hephy.at/data/llechner01/TopEFT/gridpacks/<date>/<process>/order<poly order>/  

25/09/2018

2nd order WC gridpacks
Reference Point: ctZ = 4., ctZI = 4., ctW = 4., ctWI = 4.
Run cards and proc cards taken from TTGamma_Dilept CMS Analysis changed to DIM6 model with DIM6 <= 1 for the gamma vertex

process poly order # coeff Wilson coefficients Link to GEN-SIM events Link to MiniAOD events
ttgamma dilept 2 4 ctZ, ctZI, ctW, ctWI
ttgamma semilept t 2 4 ctZ, ctZI, ctW, ctWI
ttgamma semilept tbar 2 4 ctZ, ctZI, ctW, ctWI
ttgamma had 2 4 ctZ, ctZI, ctW, ctWI

Installation CMSSW_9_4_X

cmsrel CMSSW_9_4_6_patch1
cd CMSSW_9_4_6_patch1/src
cmsenv
git cms-init
git clone https://github.com/danbarto/TopEFT
cd $CMSSW_BASE/src
./TopEFT/setup94X.sh

run.py

Use a gridpack used for central MC production (ttZ01j_5f_MLM_tarball.tar.xz) and replace model relevant information to obtain cross-sections and MC samples for EFT models. The Madgraph tarball contains the customized Higgs Effective Lagrangian (HEL) UFO where first and second generation couplings are disabled. All masses, couplings and widths are synchronized with the values used in central productions during the creation of the tarball.

Usage

run.py --model ewkDM --process ttZ --couplings DC1V 0.5 DC1A 0.5 --makeGridpack --calcXSec

The argument to --couplings can be a file name with a list of model points.

TOPAZ

For ifort on lxplus, add these two lines to .profile:

source /afs/cern.ch/sw/IntelSoftware/linux/x86_64/xe2016/compilers_and_libraries_2016.1.150/linux/bin/ifortvars.sh intel64
source /afs/cern.ch/sw/IntelSoftware/linux/setup.sh

Compile on lxplus

cd $CMSSW_BASE/src
git clone -b master git@github.com:schoef/TOPAZ
cd $CMSSW_BASE/src/TOPAZ/QCDLoop-1.9/ql
make
cd $CMSSW_BASE/src/TOPAZ/QCDLoop-1.9/ff
make
cd $CMSSW_BASE/src/TOPAZ
make

TOPAZ usage

./TOPAZ Collider=13 Correction=0 NLOParam=1 TopDK=4 ZDK=1 ObsSet=53 Process=71 VegasNc0=50000 VegasNc1=500000
./TOPAZ Collider=13 Correction=0 NLOParam=1 TopDK=4 ZDK=1 ObsSet=53 Process=72 VegasNc0=50000 VegasNc1=500000

command line parameters

  • NLOparam=1 alphaS 1-loop running, LO PDF
  • NLOparam=2 alphaS 2-loop running, NLO PDF
TopDK - specify top decay
  • TopDK=0 no top decay
  • TopDK=1 2l decay
  • TopDK=2 fully hadronic
  • TopDK=3 semi leptonic
  • TopDK=4 semi leptonic (3 and 4 give the same answer, i.e. multiply by 2)
ZDK - specify Z decays
  • ZDK=0 stable
  • ZDK=1 2l (one lepton generation), i.e. multiply by three
ObsSet - Specify cuts & histograms in mod_Kinematics.f90
  • ObsSet=52 2l stop decays
  • ObsSet=53 1l stop decays
Process - Specify the process
  • Process=71 gg-->ttb+Z
  • Process=72 qqb-->ttb+Z
BSM parameters
  • RelDelF1V=0.00 C1VZ = C1VZSM * (1 + RelDelF1V) with C1VZSM = 0.24364
  • RelDelF1A=0.00 C1AZ = - C1AZSM * (1 + RelDelF1A) with C1AZSM = 0.60069
  • RelDelF2V=0.00 C2VZ = RelDelF2V
  • RelDelF2A=0.00 C2AZ = - RelDelF2A
Interface
  • HistoFile=filename

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Repository for work on top quark coupling measurements

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