OPT-IN:Extraction of A^sin(Ï)_LU moments from the hard exclusive Ï^+ channel off the unpolarized hydrogen target in a wide range of kinematics

[Stepan Stepanyan]

Nice work, here are my comments:
- definition of kinematic variables, Q2, x_B, t, W 
- What is the meaning of the order of the grouped references? e.g. [1-11], or [12-20], or [21-31]. It make more sense to have a chronological order of these grouped references, it will give a better sense of the development of the field and correct credit to authors
- a sentence for using a “skewed Gaussian” and explanation of it will be useful
- why cos(\phi) and cos(2\phi) moments have not been studied with sidebands? 
- page 4, looks like calculations of the sin(\phi) moment neglect cos(\phi) and cos(2\phi) moments (A_{UU}). In the fits to the integrated A_{LU} in Fig.3 they are ~10-12%, how much is the contribution of these two terms for each t-bin in Fig.4?
- page 4, right column, last paragraph, how it is clearly seen that asymmetry is constrained to 0 at t=t_{min}? Looks like at the smallest t-point the asymmetry is still sizable.
- Fig.6, for consistency with Fig.3 and 3, it might be better to have the forward region in the left and the backward in the right side in the figure.