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Hi Meena, I produced the plots for those samples as well: anl samples: http://hep0.okstate.edu/khanov/snowmass/ttbar/ unl samples: http://hep0.okstate.edu/khanov/snowmass/ttbar1/ there are subtle differences (e.g. a slight shift in HT, including the no pileup samples), but the PU dependence is pretty much the same for both samples. -- Regards, Sasha On Mon, 29 Apr 2013, Meenakshi Narain wrote: > 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:montecarl > o > > 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:montecarl > o#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_FastSimulat > ion#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