Now that the x_F < 0 issue appears to be resolved, it is useful to make one more apples-to-apples comparison with Kevin. For this comparison, I have removed the geometric trigger and edited the N_hits cut to require a miminum of 21 hits rather than the minimum of 6 applied to N_{hits, dE/dx}. Also, I have added additional z-bins to correspond to Kevin's definitions. Our polarization corrections are still a bit different, but he will implement the fill-by-fill corrections, soon. Also, I still implement my high-p_T cut at 9.9 GeV/c to correspond with my jet-p_T binning.

p_T > 9.9 GeV/c

Figure 1: Total Range of Pseudorapidity

Figure 2: |η| < 0.5

Figure 3: 0.5 < |η| < 1

Table 1: π⁺

Table 2: π^-

So, by in large, the values are quite similar to my previous update. The trends are a bit cleaner. This could perhaps be the effect of more statistics, but also could be the result of the N_hits > 20 cut. Perhaps, the present cut is more selective of good pion events. For x_F > 0 and the full range of psuedorapidity, Kevin sees averages of 0.00356±0.000511 and ­‐0.00415±0.000519 for π⁺ and π^-, respectively. For x_F < 0 and the full range of pseudorapidity, Kevin sees averages of 0.00141±0.000504 and -0.00115±0.000509 for π⁺ and π^-, respectively.

p_T < 9.9 GeV/c

Figure 4: Total Range of Pseudorapidity

Figure 5: |η| < 0.5

Figure 6: 0.5 < |η| < 1

Table 3: π⁺

Table 4: π^-

Again, the values are similar to my previous update. The trends, again, appear to be a bit cleaner. For x_F > 0 and the full range of pseudorapidity, Kevin sees averages of 0.00122±0.000348 and -0.00119±0.000353 for π⁺ and π^-, resectively. For x_F < 0, he sees averages of 2.29e-05±0.000345 and -0.000556±0.000351.

Summary

Figure 7

pT > 9.9 GeV/c	pT < 9.9 GeV/c

In Fig. 7 I post the slopes as a function of η. The behavior is quite similar to my previous results. The differences may be statistically significant given the high degree of correlation between the events.