[Rivet] Rivet Trouble

[Chris Pollard]

great! Good luck, and let us know if you have more questions. :)

Chris

On Thu, Jan 21, 2016 at 12:41 PM, Eike Germann <eger4 at student.monash.edu>
wrote:

> Hi Chris,
>
> that answers my question :) Nothing wrong with two files, I'm just lazy
> and Rivet offers to take several input files. I'll change my script to run
> separate rivet instances for each beam.
>
> Thanks!
> e
>
> On 21 January 2016 at 19:42, Chris Pollard <cpollard at cern.ch> wrote:
>
>> Hi Eike,
>>
>> Indeed, Rivet expects the beam energies to be constant across a run
>> because in general the cross sections of a process will change with COM
>> energy.
>>
>> Is there a reason for not using two separate files? Sorry for my
>> ignorance---I'm not familiar with this particular analysis.
>>
>> Chris
>>
>> On Thu, Jan 21, 2016 at 2:26 AM, Eike Germann <eger4 at student.monash.edu>
>> wrote:
>>
>>> Hey there :)
>>>
>>> I'm trying to run an analysis with Pythia 8 and Rivet
>>> (ALICE_2010_S8624100 in particular) requiring multiple beams, each of which
>>> I've stored in a separate .hepmc file. When I hand these over to Rivet
>>> (doesn't matter if I use fifo or pre-written, disc based .hepmc), Rivet
>>> reads the first file correctly and then complains
>>>
>>> Reading events from 'main42_2360_out.hepmc'
>>> Event beams mismatch: [PROTON, PROTON] @ 2360 GeV vs. first beams
>>> [PROTON @ 450 GeV, PROTON @ 450 GeV] @ 900 GeV
>>>
>>> I can't find separate instructions on how to use Rivet for an analysis
>>> like this other than using multiple output files, so what's going on?
>>>
>>> Thanks
>>> Eike
>>>
>>> _______________________________________________
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>>>
>>
>>
>
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