RE: fragment production

From: Bertini, Denis Dr. <D.Bertini@gsi.de>
Date: Wed Mar 26 2008 - 14:15:43 CET

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Dear Stefan,
I am indeed defining a Au beam with BEAM and HI-PROPE and use
DPMJET. Now how to make this Au ion beam collide another Au ion
 (which will be at rest) using DPMJET ?=20
Another question , should i also define a Au target at a certain width
and reduce the interaction length in target material with LAM-BIAS
card in order to have 100% interaction target defined ?=20
                              thanks in advance=20
                                                   =20
                                      Denis

-----Original Message-----
From: owner-fluka-discuss@mi.infn.it on behalf of Stefan Roesler
Sent: Thu 3/20/2008 3:52 PM
To: Bertini, Denis Dr.
Cc: fluka-discuss@fluka.org
Subject: Re: fragment production
=20
Dear Denis,

I am not sure if I understand correctly what you mean by "Fluka used as =
a
event generator". What you can do is defining a Au beam (with BEAM and
HI-PROPE cards) at the required energy and a Au target via the usual =
FLUKA
input. You then have to activate DPMJET via EVENTYPE/Sdum=3DDPMJET and =
run=20
like any other FLUKA run. This would be a fixed-target configuration =
(this=20
is what you want, correct?), not Au-Au collisions in the cm frame.

In each A-A collision (including Au-Au) DPMJET3 will create two excited
residual nuclei which are passed onto the FLUKA modules for evaporation,
fragmentation and deexcitation. All fragments are transported by FLUKA =
and
fed back to DPMJET (or RQMD at lower energies) in case of =
re-interactions.

Hope this answers your question(?)

Greetings
Stefan

On Wed, 12 Mar 2008, Bertini Dr. Denis wrote:

>=20
> Dear Fluka Users
> I am interested in fragment produced in high energy heavy ion =
collision=20
> ( typically Au+Au at 25GeV/c).
> I am wondering if Fluka used as a event generator (using DPMJET for=20
> example ) will be able to produce
> fragments. This is quite important since the energy carried out by the =

> fragments produced will not be
> detected by our zero degree calorimeter.
> Can i for example "force" Fluka to collide a Au beam on a fixed Au=20
> target using DPMJET event generator and would that produce fragments ?
> thank in advance
> Denis Bertini
>=20
>=20
>=20

--=20
___________________________________

Stefan Roesler
CERN, SC/RP
CH-1211 Geneva 23
Switzerland

Phone: +41-22-7679891
Fax: +41-22-7669639
E-mail: Stefan.Roesler@cern.ch

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<P><FONT SIZE=3D2>Dear Stefan,<BR>
I am indeed defining a Au beam with BEAM and HI-PROPE and use<BR>
DPMJET. Now how to make this Au ion beam collide another Au ion<BR>
&nbsp;(which will be at rest) using DPMJET ?<BR>
Another question , should i also define a Au target at a certain =
width<BR>
and reduce the interaction length in target material with&nbsp; =
LAM-BIAS<BR>
card in order to have 100% interaction target defined ?<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; thanks in advance<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp; Denis<BR>
<BR>
-----Original Message-----<BR>
From: owner-fluka-discuss@mi.infn.it on behalf of Stefan Roesler<BR>
Sent: Thu 3/20/2008 3:52 PM<BR>
To: Bertini, Denis Dr.<BR>
Cc: fluka-discuss@fluka.org<BR>
Subject: Re: fragment production<BR>
<BR>
Dear Denis,<BR>
<BR>
I am not sure if I understand correctly what you mean by &quot;Fluka =
used as a<BR>
event generator&quot;. What you can do is defining a Au beam (with BEAM =
and<BR>
HI-PROPE cards) at the required energy and a Au target via the usual =
FLUKA<BR>
input. You then have to activate DPMJET via EVENTYPE/Sdum=3DDPMJET and =
run<BR>
like any other FLUKA run. This would be a fixed-target configuration =
(this<BR>
is what you want, correct?), not Au-Au collisions in the cm frame.<BR>
<BR>
In each A-A collision (including Au-Au) DPMJET3 will create two =
excited<BR>
residual nuclei which are passed onto the FLUKA modules for =
evaporation,<BR>
fragmentation and deexcitation. All fragments are transported by FLUKA =
and<BR>
fed back to DPMJET (or RQMD at lower energies) in case of =
re-interactions.<BR>
<BR>
Hope this answers your question(?)<BR>
<BR>
Greetings<BR>
Stefan<BR>
<BR>
<BR>
On Wed, 12 Mar 2008, Bertini Dr. Denis wrote:<BR>
<BR>
&gt;<BR>
&gt; Dear Fluka Users<BR>
&gt; I am interested in fragment produced in high energy heavy ion =
collision<BR>
&gt; ( typically Au+Au at 25GeV/c).<BR>
&gt; I am wondering if Fluka used as a event generator (using DPMJET =
for<BR>
&gt; example ) will be able to produce<BR>
&gt; fragments. This is quite important since the energy carried out by =
the<BR>
&gt; fragments produced will not be<BR>
&gt; detected by our zero degree calorimeter.<BR>
&gt; Can i for example &quot;force&quot; Fluka to collide a Au beam on a =
fixed Au<BR>
&gt; target using DPMJET event generator and would that produce =
fragments ?<BR>
&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; thank in advance<BR>
&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Denis =
Bertini<BR>
&gt;<BR>
&gt;<BR>
&gt;<BR>
<BR>
--<BR>
___________________________________<BR>
<BR>
Stefan Roesler<BR>
CERN, SC/RP<BR>
CH-1211 Geneva 23<BR>
Switzerland<BR>
<BR>
Phone:&nbsp; +41-22-7679891<BR>
Fax:&nbsp;&nbsp;&nbsp; +41-22-7669639<BR>
E-mail: Stefan.Roesler@cern.ch<BR>
<BR>
<BR>
</FONT>
</P>

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