OPT-IN:Measurement of the helicity asymmetry E for the vec(γ)vec(p) → pπ0 reaction in the resonance region

[Moskov Amaryan]

First of all congratulations to the lead authors, important and nice paper!
I have a few comments:

1. On lines 38 and elsewhere it would be better instead of saying "photon decay amplitudes"
I would recommend to say "radiative decay amplitudes".

2.On Fig.2 there are four panels for different central values of W. It would be better to write on the plots how much was \Delta W in each case. Same for Fig.3 the ranges of W are not explicitly presented.

Best regards,
Moskov.