[b1_ana] Neg. Tensor Pol.
Dustin Keller
dustin at jlab.org
Wed Apr 10 08:42:39 EDT 2013
Hi b1_ana,
Here is part of an e-mail that maybe of some relevance for our next
discussion:
To measure an physics asymmetry with a vector polarized target, you need
to measure events from a positively and negatively polarized target, as
you certainly know. So I assume that in your case now you have to measure
events from a positively and negatively tensor polarized target.
Tensor polarization varies between +1 and -2.
The vector polarized solid targets are automatically positively tensor
polarized and the degree of the tensor polarization can be calculated from
the measured vector polarization (assuming a Boltzman distribution among
the 3 magnetic sublevels). However it is difficult to obtain negative
values for the tensor polarization in a polarized solid target and to
measure it precisely.
Best regards
W.Meyer
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