[Clascomment] OPT-IN: Beam Spin Asymmetries in Semi-Inclusive pi0 production

[Lawrence Weinstein]

Overall, the paper is both clear and well written.

I do not understand one point.  You write on line 271-273 that the "asymmetry shows no significant x dependence for fixed P_T and it is consistent with zero for x > 0.4".  That statement is internally inconsistent.  Figure 3 shows that there is no significant x dependence for 0.1 < x < 0.4, but that it is very different and consistent with zero for x > 0.4.