Re: [fluka-discuss]: PROJECTILE HADRON MOMENTUM OUTSIDE OF THE ALLOWED REGION,

From: Francesco Cerutti <Francesco.Cerutti_at_cern.ch>
Date: Tue, 15 Apr 2014 11:25:00 +0200

Dear Sunil

that message indicates that a hadronic interaction was requested for a
particle with 7.6 keV/c momentum and, due to its risibly low energy,
indeed was not performed ("region" refers to energy range). Apparently
it's nothing impacting the simulation course, but still it is advisable to
figure out why you ended up there. We would need to reproduce your
history, let's collect the relevant material (random seed if the message
is rare and not systematic, etc).

Cheers

Francesco

**************************************************
Francesco Cerutti
CERN-EN/STI
CH-1211 Geneva 23
Switzerland
tel. ++41 22 7678962
fax ++41 22 7668854

On Mon, 14 Apr 2014, Sunil C wrote:

> Dear FLUKA developers
> I am running 7 TeV pp collisions with ppsource of SPECSOUR card
> (P1(2)Z=+(-)7 TeV) at 295 micorad angle of collisions and I find this line
> in the output (under the heading "output during transport").
>
> PROJECTILE HADRON MOMENTUM OUTSIDE OF THE ALLOWED REGION, PLAB=  
>  0.76100E-05
>
> I am curious to know
>
> 1. What could be the reason for this message.
>
> 2. What does the "region" refer to ( the geometric region) ?
>
> 3. Is the  offending particle nudged to bring it within the region allowed?
> or is it discarded? From the output I think it is discarded as the history
> number is skipped. However, in the run summary of the output I see the total
> number of primaries utilized is equal to what I have asked.
>
> Thanks in advance for the clarifications.
>
> Cheers
>
> Sunil
>
>
>
>
Received on Tue Apr 15 2014 - 12:47:01 CEST