Re: [fluka-discuss]: USRYIELD scoring CM lab angle and CM kinetic energy

From: <alfredo.ferrari_at_mi.infn.it>
Date: Thu, 23 Sep 2021 08:36:20 +0200

Dear Ryan

a quick look at the manual on the web, the ascii and pdf manuals shows
they contain the description of 34-36:

eg (from the ascii manual):

                        = 34 : sin weighted angle in the lab frame (see
Note 6)
                        = 35 : total momentum (GeV/c) in the c.m.s. frame
                        = 36 : total energy (GeV) in the c.m.s. frame

which manual did you look at?

Thanks
Alfredo

> Dear Ricardo,
>
> Thank you very much for your reply. I see that USRYIELD WHAT(1) 3625 does
> score the CM angle in degrees and CM total energy. In the FLUKA manual
> 34-36 are listed as "not used." I would like to know, what do 34 and 35
> do?
>
> On Thu, Sep 23, 2021 at 2:32 AM Ricardo Manuel Dos Santos Augusto <
> r.s.augusto_at_cern.ch> wrote:
>
>> Dear Ryan,
>>
>> Indeed it is not possible to score directly the outgoing kinetic energy
>> in
>> the centre of mass reference system via USRYIELD.
>> However, you can alternatively score the total energy in the c.m.s.
>> frame
>> (#36) and subtract the mass to get the kinetic energy in the c.m.s.
>> frame.
>>
>> Hope this helps,
>> Ricardo
>>
>> //Ricardo dos Santos Augusto
>> TRIUMF-EH&S
>> Office: +1 604 222 10 47 (6375)
>> 4004 Wesbrook Mall,
>> Vancouver, BC V6T 2A3, Canada//
>> ________________________________________
>> De : owner-fluka-discuss_at_mi.infn.it [owner-fluka-discuss_at_mi.infn.it] de
>> la part de Ryan Brosch [rbrosch_at_asu.edu]
>> Envoyé : mercredi 22 septembre 2021 9:35
>> À : fluka-discuss_at_fluka.org
>> Objet : [fluka-discuss]: USRYIELD scoring CM lab angle and CM kinetic
>> energy
>>
>> Dear FLUKA experts,
>>
>> I would like to score the inelastic hadronic scattering cross section in
>> CM frame for protons on an oxygen-16 target. I can score CM lab angle in
>> degrees and lab kinetic energy as USRYIELD 125, but I would like to
>> score
>> the outgoing kinetic energy in CM frame as well. I don't see a way to do
>> this in USRYIELD. Am I missing something?
>>
>> Thank you,
>>
>> --
>> Ryan Brosch
>> Arizona State University
>>
>
>
> --
> Ryan Brosch
> Ph.D Candidate
> Department of Physics
> Arizona State University
>


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Received on Thu Sep 23 2021 - 10:34:44 CEST

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