[Olympus] Acceptance Simulations

[Alexander Kiselev]

  Good morning colleagues,

>   now, it would be great to see what happens if we would do the double 
> ratio with B+ and B-.

  I suggest we treat these first results very carefully now (be neither 
too optimistic nor too pessimistic). I understand at present we are 
investigating pure geometric effects, right? Last time I looked into the 
ToF MC, there was no attenuation included (so there was a single Edep 
variable per paddle; perhaps this has changed already?). At some point it 
would be great to see what happens if this effect is accounted, and some 
a-la-trigger threshold set in the simulation. Handling edge inefficiency 
as 1-2cm gaps can be the first - although instructive - approximation only. 

  Regards,
    Alexander.

> Best,
> Jan
> 
> On 15.11.12 03:15, Axel Schmidt wrote:
> > 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.
> >
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> >> 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.
> >
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> >> 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
> >> +---------------------------------------------------------------------
> >
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