[Clascomment] OPT-IN: First multidimensional, high precision measurements of semi-inclusive pi+ beam single spin asymmetries from the proton over a wide range of kinematics

[Stepan Stepanyan]

In the dihadron paper, the beam polarization is quoted as 86.3%+/-3.02%, in the single pion paper the error was 2.6%, why this difference?

One more quesiton, Did you studied beam charge asymmetry, it is included in the definition of A_{LU} for di-hadron paper, Eq.(6), but has no value (I ask to include the value)