RE: [fluka-discuss]: Beam Momentum and Lab Momentum in Heavy Ion collisions

From: Shakeel Ahmed, Dr. <shakeel_at_pinstech.org.pk>
Date: Wed, 22 Apr 2015 11:19:04 +0500

Dear Mikhail Polkovnikov
I really appreciate your detailed answer
regards
shakeel
________________________________________
From: "Mikhail Polkovnikov <Михаил Полковников>" [pmk_at_ihep.ru]
Sent: Thursday, April 16, 2015 2:04 PM
To: Shakeel Ahmed, Dr.; fluka-discuss_at_fluka.org
Subject: Re: [fluka-discuss]: Beam Momentum and Lab Momentum in Heavy Ion collisions

On 15.04.2015 07:05, Shakeel Ahmed, Dr. wrote:

Dear FLuka Friends
I will appreciate if some one refer me to some documents or paper which explains in detail about the lab momentum and momentum of colliding beams. These values are inserted in FLUKA BEAM tag and lab momentum in SPECSOUR card with SDUM=PPSOURCE

thanks
shakeel
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Dear Shakeel,

Here are some papers about reference lab frame and center mass frame:
http://lpc1.clpccd.cc.ca.us/lpc/physics/pdf/ireffrms.pdf
http://phys.spbu.ru/content/File/Library/studentlectures/schlippe/pp05-03.pdf
http://web.mit.edu/8.01t/www/materials/modules/chapter15.pdf


Example of Ion+Ion colliding beams input file:
http://www.fluka.org/web_archive/earchive/new-fluka-discuss/7472.html

And of course Chapter 15<http://www.fluka.org/fluka.php?id=man_onl&sub=101> of the user manual.

In general you have to define particle A and particle B.
1. Particle A uses BEAM card in case of hadron where you define the momentum, and BEAM+HI-PROPE card in case of ion beam, where you define the momentum per nucleon.

2. Particle B uses SPECSOUR with SDUM = PPSOURCE card where you define the value of each momentum-vector component of particle A and B, and type of particle B.

3. Card PHYSICS with SDUM = LIMITS you define the maximum momentum of these two particles.

4. Link with DPMJET.

Best regards.


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Received on Wed Apr 22 2015 - 09:59:52 CEST