Here, I post the status of the p_T-shift and uncertainty calculation. The uncertainties consider the full suite of systematics:

• BEMC gain uncertainty
• BEMC efficiency uncertainty
• Track momentum uncertainty
• BEMC track uncertainty
• p_T shift statistical uncertainty
• Difference between shifts calculated with 100% tracking and 93% tracking efficiency
• Difference between shifts calculated with the nominal trigger threshold and the nominal threshold + 3 ADC counts

For the central values, I have used the "nominal+3" version. In a forthcoming post, I will explain the logic for this choice. I have also calculated the shifts by finding the average shift between detector jets and particle jets or parton jets and taking the shift from the mean of the data.

Figure 1: p_T-shifts and Total Uncertainties

In Fig. 1 I show the corrected parton-jet and particle-jet p_T values with their total uncertainties. The final range for release is to be determined.

Data-to-Embedding Comparisons with Augmented Embedding Trigger Thresholds

Here, I show the updated data-embedding comparisons, now augmenting the embedding jet-patch trigger thresholds by three ADC counts. The data are left at the nominal values.

Figure 2: JP0

NOTE: I have cut off the simulation at 7.1 GeV/c, unlike before. One can, now, see the agreement near the JP0 threshold is vastly improved.

Figure 3: JP0 (Focus on Low p_T)

ADC+3	ADC+0

NOTE: The absolute normalization is slightly changed between the two versions. Comparing the two, one can see that the augmentation of the trigger threshold has preferentially discarded jets from lower partonic p_T. This has reduced the low-p_T enhancement relative to the data.

Figure 4: JP1

ADC+3	ADC+0

NOTE: The axis range now extends to 80 GeV/c rather than the 65 GeV/c shown before. In Fig. 4 I show the updated JP1 comparisons. The ratio plots are noticeably flatter, even out to 80 GeV/c. The trigger turn-on is also much better matched than before.

Figure 5: JP2

ADC+3	ADC+0

In Fig. 5 I show the updated comparisons for JP2. While the previous comparisons were not bad, the new are even better. Constant fits to the normalized ratios from 16.3 to 80 GeV/c yield

Thus, the embedding spectrum is entirely consistent with the data across the full eta range out as high as we will conceivably release the data.