Re: [fluka-discuss]: Heavy Ion collision using DPMJET in FLUKA framework

From: Francesco Cerutti <Francesco.Cerutti_at_cern.ch>
Date: Sat, 8 Nov 2014 23:28:23 +0100

Dear Sourav,

> 1) Shall I have to define Target region of Au  material at collision vertex
>  ? 

not at all (unless your collisions are supposed to take place in gold
instead of vacuum...). You defined the second beam species in the SPECSOUR
card, where you have also said that your first beam is made by HEAVYIONs.
So you need a HI-PROPE card to specify the HEAVYION nature. And you still
need a BEAM card (where you shall put HEAVYION - making redudant your
SPECSOUR WHAT(11) setting - and an energy per nucleon exceeding 100 GeV/n
for transport initialization purposes).

> 2) Which scoring card should be used in order to retrieve kinematic
> information of produced particles and nuclear remnants after H.I. collision
> ? So far I have used “USRYIELD” card. 

USRYIELD does not work yet for the SPECSOUR collision event. You can
inspect the properties of the products by customizing the usrein.f routine
- which is automatically called before source particles start to be
transported - in order to look at the FLKSTK content (to this purpose
remember to add the
       INCLUDE '(FLKSTK)'
statement).

Cheers

Francesco

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

On Sat, 8 Nov 2014, Sourav Tarafdar wrote:

> Dear Fluka users,
>   I have been trying to simulate Au+Au collision at C.M. energy of 200
> GeV/nucleon using DPMJET3 within FLUKA framework. For defining the colliding
> beam I used SPECSOUR card with PPSOURCE type.  I am mostly interested in
> getting the kinematic variables (px, py, pz, energy , pid etc) of the
> particles after the collision and also the remnants of the nuclei after
> collision. My questions are
>
> 1) Shall I have to define Target region of Au  material at collision vertex
>  ? 
>
> 2) Which scoring card should be used in order to retrieve kinematic
> information of produced particles and nuclear remnants after H.I. collision
> ? So far I have used “USRYIELD” card. 
> Any suggestions will be of great help.
>
> Please find the attached input file for FLUKA and the output file after
> executing FLUKA using the command $FLUPRO/flutil/rfluka -e flukadpm3 test
>
> Any suggestions will be of great help.
>
> Thanks
> -Sourav
>
>
Received on Sun Nov 09 2014 - 01:17:28 CET