As a final first-look at trigger bias, I examine the Collins-like asymmetries trigger-by-trigger. The bias, here, should behave somewhat similar to the Sivers asymmetry. As a gluonic effect, the largest effects are expected at low p_T (and low-z, evidently). Again, as with Sivers asymmetries, no large effects are observed. Thus, it may be difficult to see any trigger bias.

Figure 1

Indeed, for low-pT jets, all points appear to fluctuate about zero.

Figure 2

Similarly, in high-p_T jets all points appear to fluctuate about zero.