[d2n-analysis-talk] HRS_L model in transversity simulation

Andrew Puckett puckett at jlab.org
Thu May 17 18:14:53 EDT 2012


Hey everyone,

The transversity-specific SIMC code exists on the farm at JLab, at:

/w/work5602/transversity/puckett/simc/simc_gfortran

Merely copy over the entire simc_gfortran directory to your working 
directory. The main documentation page for SIMC is at:

https://hallcweb.jlab.org/wiki/index.php/Monte_Carlo

The transversity-specific modifications of SIMC were never committed to 
an "official" cvs branch; because I never felt that the code was stable 
enough for an official "release", and then I stopped developing it 
because I changed jobs. Nonetheless, I am more than happy for anyone to 
pick it up and run with it, but your results may vary. For now the best 
way to get the code is to copy it from the work disk location above 
(don't worry, it is also backed up in multiple other locations but this 
is the most readily accessible to anyone but me). Additional 
documentation of SIMC (such as it is) can be found scattered throughout 
various Hall A/C theses and papers. A while back I believe Matt already 
tried to use my SIMC BigBite model, but I don't know whether he found it 
useful or not. There are two possible models of the HRS in the code, one 
is the "default" and the other is the "Xiaodong" model, there is a flag 
you can set in the configuration file to choose between the two. Since 
everything in SIMC is geared toward coincidence (e,e'h) experiments, 
amazingly there is no facility for inclusive electron scattering in the 
"standard" versions of SIMC. However, one can relatively 
straightforwardly write a main program that interfaces some external 
(e,e') event generator with the single-arm Monte Carlos. Unfortunately, 
the most help I can give at this point is to answer questions.

Best Regards,
Andrew


On 05/17/2012 04:53 PM, Brad Sawatzky wrote:
> Hi Xiaodong, Andrew,
>
> Thanks for the heads-up.  I'm cc'ing the folks that have been using the
> various simulations so they can comment directly.
>
> Is there a link to the Transversity-specific simC model?
>
> -- Brad
>
> On Thu, 17 May 2012, Xiaodong Jiang wrote:
>
>> Hi Brad,
>>
>> On d2n simulation, Andrew Puckett had put in a HRS_L model in
>> Transversity simulation code, which is based on simC. I don't know if
>> d2n analysis is planning to use the same simulation code ?
>>
>>   Will be straight forward to change Andrew's code into single-arm
>> simulation, with radiations energy loss build in already.
>>
>>   Let me know,
>>
>> Xiaodong


-- 
Andrew J. R. Puckett
Hall B 12 GeV Staff Scientist
Jefferson Lab
MS 12H, Room A102
12000 Jefferson Ave
Newport News, VA 23606
(757) 269-5023 (office)
(757) 814-9810 (home/cell)



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