Re: GEANT

[Bernhard LAUSS <lauss@ill.fr>]

Dear Peter,

thanks I got Steve's file.
I had one more question.
I can do 2 things now

1) as you suggested start the muons at Steve's given position with his 
momentum.
I will record the muon stop position
Do you really need the proton stop (much more work)

2) Use a GEANT incoming muon as always, track it up to a position Z 
which I obtain
from Steve's file, and in this position I apply then Steve's new 
scattered momentum
I think I can do this, and then we would be able to generate a real data 
file
which could run through the analysis and one could see how much events 
we would find.

# 2 is more work, but do you think this works, as I think that I have 
tuned my MC thresholds
in the way that roughly RUN8 tracks are reproduced.


             VLG
                 Bernhard










     _/   _/         _/                 Dr. Bernhard Lauss
    _/   _/         _/                  Institut Laue-Langevin
   _/   _/         _/                   B.P.156 - 6 rue Jules Horowitz
  _/   _/         _/                    38042 Grenoble - Cedex 9
 _/   _/_/_/_/   _/_/_/_/               France

					Tel:+33-(0)4-7620 7134   
					Fax:+33-(0)4-7620 7777

					Email: lauss@ill.fr



Peter Kammel wrote:
> Dear Bernhard,
>
> Steve will send you our latest file where he has adjusted
> my srim calculation to reproduce the muon stopping
> distribution as well as the  y vs theta_y distribution.
>
> In addition to the X_mu and P_mu of the muon after the collision,
> he will also include the proton recoil energy E_p and
> the muon vector before collision P_mui.
>
> These quantities are not needed for your GEANT, but we would
> need them stored on the output file on an event by event basis.
>
> The result of this calculation should be basically a copy of the
> input file plus the muon stop X_st and P_stop, perhaps with a
> material index.
>
> It would be easy to sort that file into tree format and then
> apply all cut variations later on.
>
> Best regards
>
> Peter
>
>
>
> On Thu, 2 Nov 2006, Bernhard LAUSS wrote:
>
>> Dear Peter,
>>
>> if you find a minute,
>> could you send me a file or a simple line
>> with an example output of the
>> muon stop position and momentum format
>> you want to have for the muon scattering
>> simulation.
>> e.g.
>> mu_x   mu_y   mu_z  p_x  p_y   p_z
>>
>>       VLG
>>            Bernhard
>>
>>
>>
>>    _/   _/         _/                 Dr. Bernhard Lauss
>>   _/   _/         _/                  Institut Laue-Langevin
>>  _/   _/         _/                   B.P.156 - 6 rue Jules Horowitz
>> _/   _/         _/                    38042 Grenoble - Cedex 9
>> _/   _/_/_/_/   _/_/_/_/               France
>>
>>                     Tel:+33-(0)4-7620 7134 Fax:+33-(0)4-7620 7777
>>
>>                     Email: lauss@ill.fr
>>
>>
>>
>> Peter Kammel wrote:
>>> Dear Bernhard,
>>>
>>> Could you send me your latest gmu_geom.inc,
>>> so that we have the latest geometry, which you
>>> are using.
>>>
>>> If you have a chance, please join the telconf tomorrow.
>>>
>>> I hope you had a safe trip home and family and work
>>> affairs are in good shape.
>>>
>>> Best regards
>>>
>>> Peter
>>>
>>>
>>>
>
> Peter Kammel  /  pkammel@uiuc.edu
> Department of Physics, Loomis Laboratory
> University of Illinois at Urbana-Champaign
> 1110 West Green Street, Urbana, IL 61801
> Tel (217) 333-5424 / Fax (217) 333-1215
>