[Clascomment] OPT-IN:Longitudinal target-spin asymmetries for deeply virtual Compton scattering

[Kijun Park]

Dear Authors,

This is a very nice result and report.
I just have a couple of minor comments.

Abstract:
(1) Fourth line; 
If authors used $\vec{e}\vec{p} \to e^{prime} p^{prime} \gamma$,
it may confuse readers with double-spin asymmetry.

(2) $t$ and $-t$ are used in many places.
Sign is not important ?

(3) I don't see any discussion about radiative corrections, even though 
it is cancelled out in asymmetry (I am not sure...).

(4) line:54, ($x-\xi$) 

(4) line:269, this -> these

(5) line:240, 295, 266, 297, 322, : remove "-" or at lease consistently used with others.

(6) line:334-336, I don't understand this statement.
I think authors want to say that the statistical uncertainty is dominated.