Preliminary results of run15 double spin asymmetry of the pion-tagged jets. This results are going to shown at SPIN2023.

Data set
pp200long2_2015
Trigger: JP1 + JP2
Official jet trees
Supporting documents
2023-08-17
2023-08-24
Subprocess fraction with pion tagging.
Results and systematic uncertainties
1. pion z > 0.2.

2. pion z > 0.3
   

Preliminary plots:
Figure 1 for pion z > 0.2
pion-tagged jet ALL vs particle jet pt. The result indicates that the ALL of pi+ is larger than the result of pi-.
However, the statistics are limited and the results are now far from conclusion.
The curves are the theoretical predictions of the pion-tagged results using the NNPDFpol1.1 and NNPDF2.3
The band shows the uncertainties from the PDFs.
The run15 inclusive jet ALL results are compared.

Figure 2 for pion z > 0.3
pion-tagged jet ALL vs particle jet pt. The result indicates that the ALL of pi+ is larger than the result of pi-.
However, the statistics are limited and the results are now far from conclusion.
The curves are the theoretical predictions of the pion-tagged results using the NNPDFpol1.1 and NNPDF2.3
The band shows the uncertainties from the PDFs.
The run15 inclusive jet ALL results are compared.