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  • Committer: Rikkert Frederix
  • Date: 2015-10-21 14:57:34 UTC
  • Revision ID: frederix@physik.uzh.ch-20151021145734-ykh72ac5gtfb2uom
fix for event reweighting in the case of lepton-lepton collisions (NLO processes)

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Template/NLO/Source/PDF/pdg2pdf_lhapdf.f
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      data imemlast/20*-99/
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      data i_replace/20/
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      if (ih.eq.0) then
 
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c     Lepton collisions (no PDF). 
 
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         pdg2pdf=1d0
 
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         return
 
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      endif
 
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c     Make sure we have a reasonable Bjorken x. Note that even though
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c     x=0 is not reasonable, we prefer to simply return pdg2pdf=0
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c     instead of stopping the code, as this might accidentally happen.