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A collections of Higgs+ttbar samples

Here are samples of Delphes 3.08 events generated for the 14 TeV center-of-mass energy (pp collisions). HEPMC files are generated by Jahred Adelman (Yale University, [email protected]). The events are generated for 0, 50 and 140 pileup scenarios. Data are stored in the ROOT format using the standard Delphes output. The samples use the “Snowmass” detector geometry. Jets were corrected using jet area correction and fake jets are not stored. See this wiki for details.

How to download ROOT files

Please read the Section How to download. You need a python script called “download.py”.

All files are located here ROOT files contain reconstructed Delphes outputs, ProMC files contain original HEPMC truth record.

Truth record

ROOT Delphes files do not have complete truth records. To view truth record, use ProMC files or HEPMC files. Look at the repository ProMC repository, identify a file with the “.promc” extension using the description in the “logfile”. Example: view complete truth-level of Z+gamma+gamma process: 

wget http://mc.hep.anl.gov/asc/snowmass2013/delphes36/promc/user.jahreda.028310._00001.pythia_events.promc
wget http://atlaswww.hep.anl.gov/asc/promc/download/browser_promc.jar 
java -jar browser_promc.jar user.jahreda.028310._00001.pythia_events.promc

(need Java7)

Higgs(to gamma+gamma) plus ttbar

Madgraph+PYTHIA samples for Higgs+ttbar, with Higgs decaying to gamma-gamma.14 TeV collisions. The samples are generated for Higgs to ttbar, with H→ gamma gamma, using PYTHIA8. In total, there are 10 files per sample (mu=0,50,140) with 1000 events in each file.

<fc #800000>without pileup</fc> Get the generated ROOT files from this download link. Download: 

python download.py 10  delphes36/jahreda/ttHgammagamma/mu0  madgraph_pythia_ttHgg_delphes307_mu0

<fc #800000> <mu>=50 pileup</fc> Get the generated ROOT files from this download link. Download: 

python download.py 10  delphes36/jahreda/ttHgammagamma/mu50  madgraph_pythia_ttHgg_delphes307_mu50

<fc #800000><mu>=140 pileup </fc> Get the generated ROOT files from this download link. Download: 

python download.py 10  delphes36/jahreda/ttHgammagamma/mu140  madgraph_pythia_ttHgg_delphes307_mu140

TTbar+gamma

Madgraph+PYTHIA samples for TTbar+gamma, with Higgs decaying to gamma-gamma.14 TeV collisions. In total, there are 10 files per sample (mu=0,50,140), with 1000 events in each.

<fc #800000>without pileup</fc> Get the generated ROOT files from this download link. Download: 

python download.py 10  delphes36/jahreda/tta/mu0  madgraph_pythia_tta_delphes307_mu0

<fc #800000><mu>=50 pileup </fc> Get the generated ROOT files from this download link: 

python download.py 10  delphes36/jahreda/tta/mu50  madgraph_pythia_tta_delphes307_mu50

<fc #800000><mu>=140 pileup </fc> Get the generated ROOT files from this download link. Download: 

python download.py 10  delphes36/jahreda/tta/mu140  madgraph_pythia_tta_delphes307_mu140

TTbar+gamma+gamma

Madgraph+PYTHIA samples for TTbar+gamma+gamma, with Higgs decaying to gamma-gamma.14 TeV collisions. In total, there are 10 files per sample (mu=0,50,140), with 1000 events in each.

<fc #800000>without pileup</fc> Get the generated ROOT files from this download link. Download: 

python download.py 10  delphes36/jahreda/ttaa/mu0  madgraph_pythia_tta_delphes307_mu0

<fc #800000><mu>=50 pileup </fc> Get the generated ROOT files from this download link: 

python download.py 10  delphes36/jahreda/tta/mu50  madgraph_pythia_ttaa_delphes307_mu50

<fc #800000><mi>=140 pileup </fc> Get the generated ROOT files from this download link. Download: 

python download.py 10  delphes36/jahreda/ttaa/mu140  madgraph_pythia_ttaa_delphes307_mu140

W+gamma+gamma

Madgraph+PYTHIA samples for W+gamma+gamma, with Higgs decaying to gamma-gamma.14 TeV collisions. In total, there are 10 files per sample (mu=0,50,140), with 1000 events in each.

<fc #800000>without pileup</fc> Get the generated ROOT files from this download link. Download: 

python download.py 10  delphes36/jahreda/waa/mu0  madgraph_pythia_waa_delphes307_mu0

<fc #800000><mu>=50 pileup </fc> Get the generated ROOT files from this download link: 

python download.py 10  delphes36/jahreda/waa/mu50  madgraph_pythia_waa_delphes307_mu50

<fc #800000><mu>=140 pileup </fc> Get the generated ROOT files from this download link. Download: 

python download.py 10  delphes36/jahreda/waa/mu140  madgraph_pythia_waa_delphes307_mu140

Z+gamma+gamma

Madgraph+PYTHIA samples for Z+gamma+gamma.14 TeV collisions. In total, there are 10 files per sample (mu=0,50,140), with 1000 events in each.

<fc #800000>without pileup</fc> Get the generated ROOT files from this download link. Download: 

python download.py 10  delphes36/jahreda/zaa/mu0  madgraph_pythia_zaa_delphes307_mu0

<fc #800000><mu>=50 pileup</fc> Get the generated ROOT files from this download link: 

python download.py 10  delphes36/jahreda/zaa/mu50  madgraph_pythia_zaa_delphes307_mu50

<fc #800000><mu>=140 pileup </fc> Get the generated ROOT files from this download link. Download: 

python download.py 10  delphes36/jahreda/zaa/mu140  madgraph_pythia_zaa_delphes307_mu140

How to analyze using ROOT

If you need to find the effect of pileup on top reconstruction or a jet measurement, you need to run the analysis code over signal MC and then over the signal+pileup MC files. Read analyse_d3

How to analyze without ROOT

In some cases, you may not have ROOT installed to read the Delphes files. In this case, you can use ROOT files converted to the ProMC format which can be read without ROOT (using C++, Java, Python). Read how to read Delphes3 output without ROOT.

— Sergei Chekanov 2013/03/06 20:48