Changes between Version 2 and Version 3 of MadWeightFAQ


Ignore:
Timestamp:
Apr 12, 2012, 11:49:07 AM (12 years ago)
Author:
Martin
Comment:

--

Legend:

Unmodified
Added
Removed
Modified

  • MadWeightFAQ

    v2 v3  
    2121==== Do I have to perform selection on the events? ====
    2222
    23 <em> **g>Question from Andre Sznajder**[[br]] The matrix element method uses just outgoing the hard scattering partons/leptons. As a concrete example let's take the Higgs to WW semi-leptonic mode H->WW->(mu nu)(qq'). As I am using CMS reconstructed event as an input, do I have to make a pre-selection of the reconstructed muons, jets and missing energy that corresponds to the parton level objects ? Or I can put in the LHCO all reconstructed jets, and leptons and it will somehow choose the correct ones ? </em>
     23'' **g>Question from Andre Sznajder**[[br]] The matrix element method uses just outgoing the hard scattering partons/leptons. As a concrete example let's take the Higgs to WW semi-leptonic mode H->WW->(mu nu)(qq'). As I am using CMS reconstructed event as an input, do I have to make a pre-selection of the reconstructed muons, jets and missing energy that corresponds to the parton level objects ? Or I can put in the LHCO all reconstructed jets, and leptons and it will somehow choose the correct ones ? ''
    2424
    2525MadWeight (MW) can only process event with the correct number of reconstructed events. So MW will first reject all the "wrong" events. So in practise, if you have two muons or three jet for an event, this one will not be accepted.
    … …  
    6161
    6262==== failure of ./bin/madweight param (step: 1) ====
    63    * {{{
     63   *
     64{{{
    6465IOError: [Errno 2] No such file or directory: './Cards/ident_mw_card.dat'
    6566}}}
    … …  
    7172==== failure of ./bin/madweight analyzer (step: 2) ====
    7273
    73    * {{{
     74   *
     75{{{
    7476bad proc_card information: missing request process tag
    75 }}} Did you modify the proc_card.dat after the launch of ./bin/newprocess ? Then you have to type again
     77}}}
     78Did you modify the proc_card.dat after the launch of ./bin/newprocess ? Then you have to type again
    7679
    7780$> ./bin/newprocess[[br]] Indeed the proc_card.dat must be the same between this moment and the time where you launch madweight analyzer.
    7881
    79    * {{{
     82   *
     83{{{
    8084FATAL ERROR: NO CHANGE OF VARIABLE
    8185                      you probably put bad option in your card