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Hi Sasha, Can you also look at some of the ttbar files at http://red-gridftp11.unl.edu/Snowmass/Delphes-3.0.6.1/ there are 13 and 33 TeV samples, with 0, 50 and 140 Pileup. I believe in these samples, the pileup files are different from those which Sergei used. If would be a good to have feedback. For the 0 and 50 PU, the ttbar are about a few Million events. 140 PU the stats is much lower. in addition to ttbar there are also many other background samples. Regards, Meenakshi On Apr 29, 2013, at 1:13 AM, Alexandre Khanov <[log in to unmask]> wrote: > Hi Sergei, > > thanks, it's working now. I looked at available ttbar samples and made some plots: > > http://hep0.okstate.edu/khanov/snowmass/ttbar/ > > Could you please take a look and see if they make sense to you? I'm particularly concered about the MET and HT distributions. MET (second column) changes a lot from 0 to 50 to 140 PU. HT (third column) is almost the same for 0 and 50 PU but changes dramatically from 50 to 140 PU. What particularly worries me is that if I just calculate the sum of selected leptons and jets' transverse momenta (columns 4,5) I don't see any big PU dependence. Is it expected? > > -- Regards, Sasha > > > On Mon, 29 Apr 2013, Sergei Chekanov wrote: > >> >> Hi, Sasha >> >> Today I was copying new Delphes files, this could case this glitch. It works now. >> >> Here are recent updates for: >> >> >> https://atlaswww.hep.anl.gov/asc/wikidoc/doku.php?id=snowmass2013:montecarlo >> >> 1) Corrected truth particles for all top samples (now we store all muons, electrons, taus, bosons and exotic particles, i.e. Z') >> >> 2) New Pythia8 sample for Higgs+ttbar >> >> 3) Explained how to read Delphes output without installing ROOT >> >> best, Sergei >> >> Sergei Chekanov | WWW : www.hep.anl.gov/chakanau >> =============== | Email: [log in to unmask] >> HEP Division, ANL | Tel : +01-630-252 6541 >> 9700 S.Cass,Argonne,IL 60439,USA | Fax : +01-630-252-5782 >> >> On 04/28/2013 06:25 PM, Alexandre Khanov wrote: >>> Hi Sergei, >>> the samples were there this morning but now I'm not able to access them: >>> http://atlaswww1.hep.anl.gov/asc/snowmass2013/delphes36/ttbar/mu0/ >>> Not Found >>> The requested URL /asc/snowmass2013/delphes36/ttbar/mu0/ was not found >>> on this server. >>> Are you moving the samples around or there is a problem with the server? >>> -- Regards, Sasha >>> Sergei Chekanov wrote: >>> Dear all, >>> >>> There are a few MC samples with ttbar available for testing: >>> https://atlaswww.hep.anl.gov/asc/wikidoc/doku.php?id=snowmass2013:montecarlo#monte_carlo_samples_using_the_snowmass_detector >>> >>> (low pT ttbar, high pT ttbar and Zprime(3TeV)->ttbar for mu=0,50,140). >>> >>> The samples were generated using the Snowmass Combined LHC detector: >>> http://www.snowmass2013.org/tiki-index.php?page=Energy_Frontier_FastSimulation#Fast_Simulation_and_Pileup_strategy_-_the_Snowmass_detector >>> >>> best, Sergei >> > > ######################################################################## > Use REPLY-ALL to reply to list > > To unsubscribe from the SNOWMASS-TOP list, click the following link: > https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=SNOWMASS-TOP&A=1 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the SNOWMASS-TOP list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=SNOWMASS-TOP&A=1