[Rivet] problems with RivetGun/Alpgen

[renkel at physics.smu.edu]

Hi Andy, Holger,

Ok, RivetGun is not used any longer. But then I need AlpGen to run with 
Rivet. As I said, it is not available (or not linked) at the hepforge 
page here.

http://www.hepforge.org/projects

There is another bootstrap that in principle can get it in, but it does 
not work for me. So may be somebody knows how I can install AlpGen, so 
it works with the Rivet.

Peter.

Quoting Andy Buckley <andy.buckley at ed.ac.uk>:

> On 09/04/10 10:24, Holger Schulz wrote:
>> Hi Peter,
>>
>> to my knowledge, RivetGun does not exist anymore,
>> the wiki page hasn't been updated for more than three years.
>
> Yes, that's right: sorry about the wiki page... I'll update that today
> (hopefully...)
>
>> Rivet is completely independent of any generator libraries now.
>> You will need agile to steer your (FORTRAN) generator and
>> rivet to analyse the HepMC output coming from agile.
>
> Right. You can make this HepMC output any way you like -- AGILe is just
> a convenient way to do that for some Fortran generators.
>
>> I haven't run AlpGen with Rivet but the usual way
>> to go is to run agile with Alpgen to get the HepMC
>> output and feed it to Rivet using a fifo file buffer (create it
>> via mkfifo hepmc.fifo).
>>
>> So your commandline should look somehting like this:
>>
>>     agile-runmc AlpGenFpythiaVERSION -o hepmc.fifo -n 10000 & rivet
>>     hepmc.fifo -a ALEPH_1991_S2435284 -H output.aida
>
> AlpGen is one of the stranger interfaces because it requires a parameter
> to tell it where to find the AlpGen input parton-level event files. I've
> never used the interface personally: maybe Jon, Giulio or someone else
> who has used (and wrote!) that interface can comment. (It would be
> useful if we had an AGILe wiki page specifically on the AlpGen interface
> to explain how it is to be used.)
>
> Andy
>
> --
> Dr Andy Buckley
> SUPA Advanced Research Fellow
> Particle Physics Experiment Group, University of Edinburgh
>