analyzingpower
Analyzing power, denoted A_y (or A_N in some contexts), is a dimensionless quantity used in spin physics to quantify how sensitive a given scattering process is to the spin polarization of the incoming particle. It is defined as the ratio of the spin-dependent part of the scattering cross section to the spin-averaged cross section for a particular kinematics.
In experiments with a transversely polarized beam and an unpolarized target, the left-right asymmetry in yield
A_y is a function of scattering angle and beam energy and depends on the specific reaction. It
Measuring the analyzing power serves multiple purposes. It characterizes the spin structure of the interaction, aids