SciFi seeding qop asymmetries on data

@anmorris and @tevans noticed an asymmetry in the long-track qop distribution on data that is not present in simulation. Digging a bit more, the seeding qop distribution also shows some strange behaviour (both asymmetry and a strange peak). Looking at RecoMon monet plots, this doesn't seem to be the case for the seeding qop.

When looking a bit at the code it was noticed that for the HLT1 seeding implementation of the seeding states:

• the dzdy correction is not used at all
• the dRatio parametrization is not used, only a constant value. Any ideas if this could be relevant? Or if not, any other ideas on what could be causing the asymmetry?

@lohenry @anmorris @ahennequ @dovombru @gunther @tevans

Run used for data: 291418 (MEPs can be found in /calib/online/MEP_dumps_20_04_24/ , post-HLT1 MDFs can be found in /calib/online/tmpHlt1Dumps/LHCb/0000291418)

Simulation from : /scratch/allen_data/mdf_input/Beam6800GeV-expected-2024-MagDown-nu7.6/

SciFi seeding q/p distributions from (top) data, (bottom) simulation

Long track (from matching) q/p distributions from (top) data, (bottom) simulation