[Halld-physics] FOM for solenoidal field

[Curtis A. Meyer]

Thanks Elton -

   that is a good way to keep this material organized.

   - curtis
On 4/27/10 6:15 PM, Elton Smith wrote:
> Dear collaborators,
>
> I was encouraged to summarize the figure-of-merit (FOM) and the argument
> for using this quantity as a justification for running the solenoid at
> 1500A.
>
> I have placed my argument and the FOM plot on the wiki at
> http://www.jlab.org/Hall-D/software/wiki/index.php/Experimental_Sensitivity_to_Solenoidal_Field
>
> > From the outset I realize that this quantity may not be the most relevant
> for all physics channels.  It will depend on what limits the experimental
> measurement. The proposed FOM makes the assumption that the luminosity is
> limited by the electromagnetic background.  There are in fact indication
> are that the rates in the detectors are close to their operational limits,
> so this is not an unreasonable assumption. Other limitations might
> include, for example, the accidentals in the tagger, which would lead to a
> different FOM.
>
> In any case, comments and feedback to this FOM are welcome, and the wiki
> page can be used to collect and summarize our thoughts on this subject.
>
> Cheers, Elton.
>
>
>
> Elton Smith
> Jefferson Lab MS 12H5
> 12000 Jefferson Ave
> Suite # 16
> Newport News, VA 23606
> elton at jlab.org
> (757) 269-7625
> (757) 269-6331 fax
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>    


-- 
Prof. Curtis A. Meyer		Department of Physics
Phone:	(412) 268-2745		Carnegie Mellon University
Fax:	(412) 681-0648		Pittsburgh PA 15213-3890
cmeyer at ernest.phys.cmu.edu	http://www.curtismeyer.com/