Failed reading CalcHep LHE file

[schsu]

Dear Delphes experts,

./DelphesLHEF
I wish to use Delphes to read LHEF file created by Delphes

However, I received error messages below:
ERROR: invalid event format

Look forward to your help.

Shih-Chieh

[schsu]

CalcHep LHEF output file

[Michele Selvaggi]

Dear Shih-Chieh,

in order to read the events from the LHE file Delphes looks for the string "<events" which happens to appear also in your lhe header part.
We will fix this in the next Delphes version.
Meanwhile you can remove the following (useless) line from your lhe:

<eventsNumber> 10000 </eventsNumber>

or change it to something like:

<EventsNumber> 10000 </EventsNumber>

and it should work.

Also, just an unrelated comment: your events contain only undecayed W,Z bosons. I am not sure what you are trying to achieve with Delphes. Prior to running Delphes, your should first decay and then hadronize your final state.

Cheers,

Michele

[Pavel Demin]

The CalcHep LHE files can be read with new release 3.0.10.