[Olympus] Acceptance Simulations

Axel Schmidt schmidta at MIT.EDU
Wed Nov 14 21:15:48 EST 2012


On Nov 14, 2012, at 12:07 PM, Michael Kohl wrote:

> Hi Axel,
> this looks good. On first sight, the acceptance changes are small.
> One needs much more statistics at backward angle. Maybe use a white generator with weights rather that cross-section distributed events.

Here is  a plot using data from a generator that is isotropic in the lepton angle.  

-------------- next part --------------
A non-text attachment was scrubbed...
Name: isotropic.pdf
Type: application/pdf
Size: 64074 bytes
Desc: not available
Url : http://mailman.mit.edu/pipermail/olympus/attachments/20121114/8e4ab724/attachment.pdf
-------------- next part --------------

> For the comparison of gap vs no gap, one would need to look at ratios of ratios.
> 

And here is that same data, plotted as a ratio of ratios.  

-------------- next part --------------
A non-text attachment was scrubbed...
Name: double.pdf
Type: application/pdf
Size: 40441 bytes
Desc: not available
Url : http://mailman.mit.edu/pipermail/olympus/attachments/20121114/8e4ab724/attachment-0001.pdf
-------------- next part --------------

> Thanks and best regards
>  Michael
> 
> 
> 
> On Wed, 14 Nov 2012, Axel Schmidt wrote:
> 
>> Hi Michael,
>> 	Here are plots showing the effect of introducing gaps between the tof bars (B+ mode only).  I show two different binning schemes side by side.
>> Cheers,
>> Axel
>> 
>> 
> 
> +---------------------------------------------------------------------
> | Dr. Michael Kohl, Assistant Professor and Staff Research Scientist
> | Physics Department, Hampton University, Hampton, VA 23668
> | Jefferson Lab, C117, 12000 Jefferson Avenue, Newport News, VA 23606
> | Phone: +1-757-727-5153 (HU), +1-757-269-7343 (Jlab)
> | Fax:   +1-757-728-6910 (HU), +1-757-269-7363 (Jlab)
> | Email: kohlm at jlab.org
> | Cell:  +1-757-256-5122 (USA)
> |
> | Deutsches Elektronen-Synchrotron DESY, Bd. 66, Rm. 6,
> | Phone: +49-40-8998-6406, Cell: +49-171-101-1967
> +---------------------------------------------------------------------



More information about the Olympus mailing list