Add HLT2 lines for SMOG2
This MR contains the following changes:
- The make_TrackBeamLineVertexFinderSoA_pvs() function in hlt1_tracking.py is modified to have an additional "MinZ" argument. By default this parameter is set to -300 mm for the nominal LHCb pp reconstruction, and when this function is called in the SMOG2 lines the MinZ is set to -541 mm to allow for PV reconstruction in SMOG2.
A first draft of the HLT2 lines for proton-nucleus SMOG2 physics is put in lines/ift. Four sets of lines are added:
- Muon lines (in
hlt2_smog2_muons.py) - Charm lines (in
hlt2_smog2_charm.py) - Charged PID lines (Ks->pi+pi-, Lambda->pi-p, phi->K+K-) (in
hlt2_smog2_chargedPID.py) - Minimum bias lines (in
hlt2_smog2.py)
Preliminary rates for the lines are shown in SMOG2_HLT_line_efficiencies.pdf. Here, it must be noted that the framework to simulate SMOG events is not yet merged, so for now we only have private simulation for some signals with pHe collisions without pp pile-up (D0->Kp, etac->ppbar, Jpsi->ppbar, Jpsi->mumu) and a Minimum Bias sample for the pAr+pp configuration. The configuration pAr+pp is where we expect the highest rates.
Rates are ~1% or lower in pAr+pp for most lines, except for Minimum Bias lines, the Ks->pi+pi- line for charged PID (~3%) and some 4-body charm lines which can be prescaled for the moment.