[b1_ana] Fwd: Systematic Errors

[O. A. Rondon]

Hi Steve,

Which proposal number is this experiment? I've looked at E94-110,
99-118, 02-109, 03-103, 04-001, and 06-009, all about R on deuterium or
nuclear targets, and none have an Appendix B on p.29 discussing
systematic errors.

Or maybe you have a version that is different from those posted below?
http://www.jlab.org/div_dept/physics_division/experiments/

Thank you and cheers,

Oscar

Patricia SOLVIGNON wrote:
> Begin forwarded message:
> 
>> *From: *"Stephen A. Wood" <saw at jlab.org <mailto:saw at jlab.org>>
>> *Subject: **Systematic Errors*
>> *Date: *May 10, 2013 1:52:08 PM EDT
>> *To: *Patricia Solvignon-Slifer <solvigno at jlab.org <mailto:solvigno at jlab.org>>
>>
>> Patricia:
>>
>> I think the table in Appendix B (page 29) of the Nuclear Dependence of R 
>> proposal might be a good guide of what time dependent/point to point 
>> systematic errors to consider in b1.  Like b1, measuring R is essentially 
>> subtracting two cross sections to get a difference that is a small fraction of 
>> the cross sections.  For b1, ignore the specific numbers presented.  I believe 
>> the numbers in the table just get copied around between proposals and theses, 
>> and some of these systematic errors come from the fact that one has to change 
>> beam energies and spectrometer settings.  But it would be worthwhile to think 
>> about each item in the list and consider whether it is relevant to b1 and how 
>> well it can be controlled.
>>
>> Steve
>>
> 
> 
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