[Clascomment] OPT-IN: Measurement of the beam spin asymmetry of ep -> e'p'eta in the deep-inelastic regime with CLAS

Andrey Kim kenjo at jlab.org
Wed Jul 4 12:28:11 EDT 2018


Dear Stepan and Michel,
Thank you again for your comments to eta paper. I just want to clarify the
sideband correction described in the paper. I am sorry for confusion but my
previous comment that sidebands were integrated over helicity states was
incorrect. They were in fact applied independently for each kinematic bin
and each helicity state, therefore taking into account the background
asymmetry.
As for the choice of range for sideband extraction (3 to 6 sigma), for the
systematic studies the range was chosen 4 to 7 sigma, and the deviations of
the final BSA results were small compared to the statistical errors. These
variations were included in systematic uncertainty.
Best regards,
Andrey.
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