This note reports how the convolution tables for normalised cross sections used in NangaParbat are produced. In NangaParbat/tables there are six folders, one for each perturbative order currently available. For some experiments, for which the observable is (1/σfid)(dσ/dqT)fid,
it is necessary to add the prefactor (1/σfid) in the header of the tables. The fiducial total cross section σfid is calculated with DY@NNLO at the order specified in the table below:
| table | DY@NNLO at |
|---|---|
LL |
lo |
NLL |
lo |
NLLp |
nlo |
NNLL |
nlo |
NNLLp |
nnlo |
N3LL |
nnlo |
The convolution tables are computed with NangaParbat/run/CreateTables.cc using the configuration file config.yaml present in each subfolder of NangaParbat/tables/.
Once computed, the tables for the experiments whose observable is the normalized cross section need their prefactor (1/σfid) (computed with DY@NNLO at the appropriate order) to be included. These prefactors are stored in the file FiducialCrossSections.yaml present in each subfolder of NangaParbat/tables/ and included in the relevant tables through the script. This operation has alredy been done in the tables released with the code.
The experiments for which the observable is (1/σfid)(dσ/dqT)fid and thus need the prefactor in the convolution table are the following.