By the way, if overlaying with beam, the integrated cross section is currently obtained from the lhe (MadGraph) file and used during the merging of the Poisson distributions of the components into a single stdhep file.
I don't think your generated files currently report this number, but this integrated XS would probably need to be written somewhere before they can be mixed with other files using the existing procedure.
Otherwise, that procedure may need to be tweaked as well, unless the tridents can be spaced and readout with the beam.
It may not important at the moment, but I just wanted to bring it up before needing to mix these with beam.
________________________________________
From: [log in to unmask] <[log in to unmask]> on behalf of Luca Colaneri <[log in to unmask]>
Sent: Wednesday, December 16, 2015 4:08 PM
To: Sho Uemura
Cc: Graf, Norman A.; hps-software
Subject: Re: weighted events
Thank you!
Il 16/12/15 16:08, Sho Uemura ha scritto:
> It doesn't (it only reads and writes the information in the HEPEVT
> common block), but I can make it do that (need to use HEPEVT and
> HEPEV4). I'll work on that.
>
> On Wed, 16 Dec 2015, Luca Colaneri wrote:
>
>> I don't overlay with beam, for now.
>>
>> Up to know, I've been writing events in lhe formats without putting
>> in it any weight. Does the lhe-stdhep converter we use read that
>> information from the lhe?
>>
>> Il 16/12/15 15:59, Graf, Norman A. ha scritto:
>>> Hello Luca,
>>> The event weight in the stdhep file is preserved through the
>>> processing chain and can be retrieved
>>> in your analysis with event.getWeight().
>>> I do not know how this is handled if you overlay beam events, though.
>>> Norman
>>>
>>> -----Original Message-----
>>> From: [log in to unmask]
>>> [mailto:[log in to unmask]] On Behalf Of Luca Colaneri
>>> Sent: Wednesday, December 16, 2015 12:56 PM
>>> To: hps-software
>>> Subject: weighted events
>>>
>>> Hello guys,
>>> is there a way to preservw the weight of a MC event throughout the
>>> whole simulation chain?
>>>
>>> L.
>>>
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