1. lnujj / lljj informal meeting, 13-Jun-2013Sanya.Solodkov@cern.ch1 Generation of W+jets with cut on W pt Alexander Solodkov IHEP, Protvino

2. Sanya.Solodkov@cern.ch2 Software versions  Following recommendation of Philippe Calfayan I tried to run modified version of Alpgen with cut on boson pt  Last Athena release – 17.7.0 contains latest versions of all Alpgen packages, it means that production can be easily done on the grid External/AlpGen-00-00-06 uses Alpgen v2.1.4.p5 Generators/AlpGen_i-00-00-43 Generators/AlpGenControl-00-00-22 lnujj / lljj informal meeting, 13-Jun-2013

3. Test with Z  tau tau Np1  For first test with cut on Z pt the following datasets were produced (5000 events each) 147122.ZtautauNp1 - no pt cut 147154.ZtautauNp1 - 0 < pt < 40 147186.ZtautauNp1 - 40 < pt < 70 147218.ZtautauNp1 - 70 < pt < 140 147250.ZtautauNp1 - 140 < pt < 280 147282.ZtautauNp1 - 280 < pt < 500 147314.ZtautauNp1 - 500 < pt lnujj / lljj informal meeting, 13-Jun-2013Sanya.Solodkov@cern.ch3

4. Test with Z  tau tau Np1  For pt > 500 GeV job failed with error: TestHepMC ERROR EFFICIENCY IS TOO LOW! 97.9624% found, but at least: 98% required AthenaEventLoopMgr ERROR Error in Algorithm Finalize severity=ERROR severity=ERROR  Had to rerun job with extra parameter postExec=topAlg.TestHepMC.EffFailThreshold=0.975  Next few slides – attempt to reproduce plot shown in this presentation: https://indico.cern.ch/getFile.py/access?contribId=2&resId=0&ma terialId=slides&confId=254873 https://indico.cern.ch/getFile.py/access?contribId=2&resId=0&ma terialId=slides&confId=254873 lnujj / lljj informal meeting, 13-Jun-2013Sanya.Solodkov@cern.ch4

5. Test with Z  tau tau Np1 (no sum) lnujj / lljj informal meeting, 13-Jun-2013Sanya.Solodkov@cern.ch5

6. Test with Z  tau tau zoomed lnujj / lljj informal meeting, 13-Jun-2013Sanya.Solodkov@cern.ch6

7. Test with Z  tau tau stacked hist lnujj / lljj informal meeting, 13-Jun-2013Sanya.Solodkov@cern.ch7

8. Test with Z  tau tau stacked hist lnujj / lljj informal meeting, 13-Jun-2013Sanya.Solodkov@cern.ch8

9. Test with W+jets  W+njets without pt cut and with pt>150 cut were produced for 3 possible decay modes and number of jets 0 150 cut were produced for 3 possible decay modes and number of jets 0 <= n <=5 – 36 datasets in total  6 jobs failed WenuNp5incl WtaunuNp5incl WenuNp0_pt150 WenuNp5incl_pt150 WmunuNp0_pt150 WtaunuNp0_pt150 lnujj / lljj informal meeting, 13-Jun-2013Sanya.Solodkov@cern.ch9

10. Test with W+jets  In failed jobs errors are always similar At line 108 of file../src/initalpgen.F (unit = 71, file = 'inparmAlpGen.dat') Fortran runtime error: End of file At line 2064 of file../alplib/alpgen.f (unit = 11, file = 'alpout.par') Fortran runtime error: End of file At line 3614 of file../alplib/alpgen.f (unit = 11, file = 'alpout.par') Fortran runtime error: End of file  Log files are available at http://cern.ch/solodkov/alpgen http://cern.ch/solodkov/alpgen  Asked Philippe if he knows what’s wrong lnujj / lljj informal meeting, 13-Jun-2013Sanya.Solodkov@cern.ch10

11. W  e nu + 1,2,3,4 jets s lnujj / lljj informal meeting, 13-Jun-2013Sanya.Solodkov@cern.ch11

12. W  mu nu + 1,2,3,4 jets s lnujj / lljj informal meeting, 13-Jun-2013Sanya.Solodkov@cern.ch12

13. W  tau nu + 1,2,3,4 jets s lnujj / lljj informal meeting, 13-Jun-2013Sanya.Solodkov@cern.ch13

14. Conclusions  Event generation with cut on boson pt seems to be working WlnuNp1 – WlnuNp4 are fine Still need to understand the reason of failures in some jobs for Np0 and Np5inclusive  I guess next step – to produce more “official” datasets How to proceed ? Private production or request to production team ? Which release should be used ? Output from 17.7.0 might be incompatible with 17.2.X.Y How many events are needed ? lnujj / lljj informal meeting, 13-Jun-2013Sanya.Solodkov@cern.ch14