use lhapdf calculate the total cross secsion

Asked by abulikim2011

Dear Sir,

I had a question about lhapdf.
i already installed lhapdf and modifed and download ct14qed proton
i want to use this pdf calculate cross secsion
This is the process I generate :
define e=e+ e-
define mu=mu+ mu-
generate a a > w+ w- > e mu vl vl~
i modify the run_card.dat as follows:
   1 = lpp1 ! beam 1 type
     1 = lpp2 ! beam 2 type
     3500.0 = ebeam1 ! beam 1 total energy in GeV
     3500.0 = ebeam2 ! beam 2 total energy in GeV
   lhapdf = pdlabel ! PDF set
     13300 = lhaid ! if pdlabel=lhapdf, this is the lhapdf number
 4 = dynamical_scale_choice ! Choose one of the preselected dynamical choices
 1.0 = scalefact ! scale factor for event-by-event scales
 0 = ptl ! minimum pt for the charged leptons
 1000 = etal ! max rap for the charged leptons
 0.0 = drll ! min distance between leptons
after that run this process display in the screen
Error detected in "generate_events "
write debug file /home/ablikim/aaaaaaaaaaa/run_03_tag_1_debug.log
If you need help with this issue please contact us on https://answers.launchpad.net/madgraph5
MadGraph5Error : lhaid 13300 not valid input number for the current lhapdf
what is happen this process ,i can't understand ?

Question information

Language:
English Edit question
Status:
Answered
For:
MadGraph5_aMC@NLO Edit question
Assignee:
marco zaro Edit question
Last query:
Last reply:
Revision history for this message
marco zaro (marco-zaro) said :
#1

Hi,
so, if you are using LHAPDF 5, the set 13300 (13300 CT14qed_proton) is not available.
If you use LHAPDF6, it is available, and you probably need to update the list of pdfsets (pdfsets.index file)
you can do it with
/path_to_lhapdf6/bin/lhapdf update
(putting the correct lhapdf path)

Cheer,
Marco

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