Hi Agnieszka,
what about neutral pions? It looks like you are cutting them in your
FLUKA-DPMJET hadron count.
Cheers
Francesco
**************************************************
Francesco Cerutti
CERN-EN/STI
CH-1211 Geneva 23
Switzerland
tel. +41 22 7678962
On Wed, 30 Jan 2019, amucha_at_agh.edu.pl wrote:
> Thank you for the answer.
> The total (all particles) multiplicity in my study goes also slightly above
> 1000, with 119 average. But if I choose hadrons (protons, neutrons, charged
> pions, kaons) only, the average multiplicity is 72, whereas Pythia8 gives me
> almost twice as much.
> I attached the plots with comparison of these two generators. Pythia8 is used
> as standalone program, but DPMJET3 data are obtained from FLUKA (I don't know
> how to use standalone DPMJET3). The top and bottom plots differ only by the
> log scale. There are no elastic events in DPMJET3 plot. Do you have any
> explanation for such a huge differences? I'm aware that PYTHIA has a lot of
> parameters to set, but I used kind of "standard" for my experiment.
> Regards,
> Agnieszka
>
>
>
> W dniu 2019-01-30 11:35, Francesco Cerutti napisał(a):
>> Dear Agnieszka,
>>
>> I see that for collisions between 6.5 TeV proton beams the DPMJET
>> event generator used by FLUKA gives an average multiplicity of 119,
>> with an obvious minimum of 2 and a maximum exceeding 1150 (for my
>> 100,000 event statistics). So no artificial cut at 800 applies and I
>> have got no evidence of underestimation.
>>
>> Cheers
>>
>> Francesco
>>
>> **************************************************
>> Francesco Cerutti
>> CERN-EN/STI
>> CH-1211 Geneva 23
>> Switzerland
>> tel. +41 22 7678962
>>
>> On Thu, 24 Jan 2019, amucha_at_agh.edu.pl wrote:
>>
>>> Dear Fluka users,
>>> I’m studying the differences between Fluka simulation and kind of
>>> “standard” simulation for the LHC. I dumped particles produced in the
>>> collision of 6.5 TeV proton beams and I see that multiplicity of
>>> particles is smaller than in other simulation. Does anybody know if there
>>> is a cut on the maximum number on particles produced in the Fluka
>>> simulation? It should be about 800 (in one pp collision) to explain the
>>> difference I see.
>>> Regards,
>>> Agnieszka Mucha
>>>
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>
>
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Received on Wed Jan 30 2019 - 18:12:27 CET