In order to obtain an unbiased (or less biased) measure of the displacement of a particle wrt a PV (eg, flight distance, decay time, etc), PVs must be refitted excluding the signal tracks. This is enabled by setting
, etc). However,
functor. When refitted PVs are generated, they are saved to the output mDST along with the particle
PV relations tables and so are accessible for user analysis. If the refitted PVs aren't generated, they can't be recovered offline on the mDST Turbo output.
.
The same applies to lines that should have requested PV refitting but didn't, but these aren't discussed here.
If one or more tracks from your signal candidate are included in the PV fit, this will pull the position of the PV towards those tracks and so will bias any displacement variables calculated wrt the PV. This is particularly important for time dependent analyses, as the decay time will be biased. This could potentially bias measurements of, eg, lifetimes, mixing, time dependent CPV.
). Thus, if you have strong enough displacement cuts (
, etc) in your selection, the signal tracks will never have been included in the PV fit anyway. Note however that there is a difference between the
that you'll get in your ntuples offline.
These are lines that requested PV refitting, and did so correctly. Lines that didn't request PV refitting aren't shown.
These are lines that requested PV refitting in some way, but did it incorrectly. Many of these include some
cuts, which will mitigate the effect, so these are also listed. The selection tree with all selection requirements for each of these lines can be found
.
Line |
cuts |
Hlt2CharmHadDpToKmKpKpTurbo |
{'Hlt2CharmHadD2HHH_DpToKmKpKpCombiner': ['MIPCHI2DV(PRIMARY) > 4.0', 'AHASCHILD((MIPCHI2DV (PRIMARY)) > 10.0', 'ANUM(MIPCHI2DV (PRIMARY) > 4.0) >= 2'], 'Hlt2CharmHadSharedDetachedDpmChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadDpToKmKpPipTurbo |
{'Hlt2CharmHadD2HHH_DpToKmKpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 50.0', 'MIPCHI2DV(PRIMARY) > 4.0', 'ANUM(MIPCHI2DV (PRIMARY) > 10.0) >= 2'], 'Hlt2CharmHadSharedDetachedDpmChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedDpmChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadDpToKmPipPipTurbo |
{'Hlt2CharmHadSharedDetachedDpmChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedDpmChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadD2HHH_DpToKmPipPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 50.0', 'MIPCHI2DV(PRIMARY) > 4.0', 'ANUM(MIPCHI2DV (PRIMARY) > 10.0) >= 2']} |
Hlt2CharmHadDpToKmPipPip _ForKPiAsymTurbo |
{'Hlt2CharmHadSharedNoPIDDetachedChild_piFilter': ['MIPCHI2DV(PRIMARY) > 3.0'], 'Hlt2CharmHadDetAsym_DpToKmPipPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 100.0', 'MIPCHI2DV(PRIMARY) > 25.0', 'ANUM(MIPCHI2DV (PRIMARY) > 49.0) >= 2'], 'Hlt2CharmHadSharedNoPIDDetachedChild_KFilter': ['MIPCHI2DV(PRIMARY) > 3.0']} |
Hlt2CharmHadDpToKmPipPip _LTUNBTurbo |
{} |
Hlt2CharmHadDpToKpKpPimTurbo |
{'Hlt2CharmHadD2HHH_DpToKpKpPimCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 50.0', 'MIPCHI2DV(PRIMARY) > 4.0', 'ANUM(MIPCHI2DV (PRIMARY) > 10.0) >= 2'], 'Hlt2CharmHadSharedDetachedDpmChild_TightKFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedDpmChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadDpToKpPimPipTurbo |
{'Hlt2CharmHadD2HHH_DpToKpPimPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 50.0', 'MIPCHI2DV(PRIMARY) > 4.0', 'ANUM(MIPCHI2DV (PRIMARY) > 10.0) >= 2'], 'Hlt2CharmHadSharedDetachedDpmChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedDpmChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadDpToPimPipPipTurbo |
{'Hlt2CharmHadD2HHH_DpToPimPipPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 50.0', 'MIPCHI2DV(PRIMARY) > 4.0', 'ANUM(MIPCHI2DV (PRIMARY) > 10.0) >= 2'], 'Hlt2CharmHadSharedDetachedDpmChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadDspToKmKpKpTurbo |
{'Hlt2CharmHadD2HHH_DspToKmKpKpCombiner': ['MIPCHI2DV(PRIMARY) > 4.0', 'AHASCHILD((MIPCHI2DV (PRIMARY)) > 10.0', 'ANUM(MIPCHI2DV (PRIMARY) > 4.0) >= 2'], 'Hlt2CharmHadSharedDetachedDpmChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadDspToKmKpPip |
{'Hlt2CharmHadSharedDetachedDpmChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadD2HHH_DspToKmKpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 50.0', 'MIPCHI2DV(PRIMARY) > 4.0', 'ANUM(MIPCHI2DV (PRIMARY) > 10.0) >= 2'], 'Hlt2CharmHadSharedDetachedDpmChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadDspToKmKpPipTurbo |
{'Hlt2CharmHadSharedDetachedDpmChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadD2HHH_DspToKmKpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 50.0', 'MIPCHI2DV(PRIMARY) > 4.0', 'ANUM(MIPCHI2DV (PRIMARY) > 10.0) >= 2'], 'Hlt2CharmHadSharedDetachedDpmChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadDspToKmKpPip _LTUNBTurbo |
{} |
Hlt2CharmHadDspToKmPipPipTurbo |
{'Hlt2CharmHadSharedDetachedDpmChild_TightKFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadD2HHH_DspToKmPipPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 50.0', 'MIPCHI2DV(PRIMARY) > 4.0', 'ANUM(MIPCHI2DV (PRIMARY) > 10.0) >= 2'], 'Hlt2CharmHadSharedDetachedDpmChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadDspToKpKpPimTurbo |
{'Hlt2CharmHadD2HHH_DspToKpKpPimCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 50.0', 'MIPCHI2DV(PRIMARY) > 4.0', 'ANUM(MIPCHI2DV (PRIMARY) > 10.0) >= 2'], 'Hlt2CharmHadSharedDetachedDpmChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedDpmChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadDspToKpPimPipTurbo |
{'Hlt2CharmHadD2HHH_DspToKpPimPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 50.0', 'MIPCHI2DV(PRIMARY) > 4.0', 'ANUM(MIPCHI2DV (PRIMARY) > 10.0) >= 2'], 'Hlt2CharmHadSharedDetachedDpmChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedDpmChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadDspToPimPipPipTurbo |
{'Hlt2CharmHadD2HHH_DspToPimPipPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 50.0', 'MIPCHI2DV(PRIMARY) > 4.0', 'ANUM(MIPCHI2DV (PRIMARY) > 10.0) >= 2'], 'Hlt2CharmHadSharedDetachedDpmChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadDstp2D0Pip _D02KS0KS0_KS0DDTurbo |
{'Hlt2CharmHadDstp2D0Pip_D02KS0KS0_KS0DDTurboCombCombiner': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadDstp2D0Pip _D02KS0KS0_KS0LLTurbo |
{'Hlt2CharmHadDstp2D0Pip_D02KS0KS0_KS0LLTurboCombCombiner': ['MIPCHI2DV(PRIMARY) > 9.0'], 'Hlt2SharedKsLLTFKsLLTF': ['MIPCHI2DV(PRIMARY)>36']} |
Hlt2CharmHadDstp2D0Pip _D02KS0KS0_KS0LL_KS0DDTurbo |
{'Hlt2CharmHadDstp2D0Pip_D02KS0KS0_KS0LL_KS0DDTurboCombCombiner': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2SharedKsLLTFKsLLTF': ['MIPCHI2DV(PRIMARY)>36']} |
Hlt2CharmHadLcpToPpKmKpTurbo |
{'Hlt2CharmHadLcXic2HHH_LcpToKmPpKpCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadLcpToPpKmPipTurbo |
{'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadLcXic2HHH_LcpToKmPpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2']} |
Hlt2CharmHadLcpToPpKmPip _LTUNBTurbo |
{} |
Hlt2CharmHadLcpToPpKpPimTurbo |
{'Hlt2CharmHadLcXic2HHH_LcpToPimPpKpCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2'], 'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadLcpToPpPimPipTurbo |
{'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadLcXic2HHH_LcpToPimPpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadXic0ToPpKmKmPipTurbo |
{'Hlt2CharmHadXic0ToPpKmKmPipTurbo_DetachedHHHHCombinerCombiner': ['ANUM(MIPCHI2DV (PRIMARY) > 6.0) >= 2', 'AHASCHILD((MIPCHI2DV (PRIMARY)) > 8.0', 'MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadXic0ToPpKmKmPip _LTUNBTurbo |
{} |
Hlt2CharmHadXiccp2LcpKmPim _Lcp2PpKmPipTurbo |
{'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadLcXic2HHH_LcpToKmPpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2']} |
Hlt2CharmHadXiccp2LcpKmPip _Lcp2PpKmPipTurbo |
{'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadLcXic2HHH_LcpToKmPpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2']} |
Hlt2CharmHadXiccp2LcpKpPim _Lcp2PpKmPipTurbo |
{'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadLcXic2HHH_LcpToKmPpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2']} |
Hlt2CharmHadXiccp2XicpPimPim _Xicp2PpKmPipTurbo |
{'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadLcXic2HHH_LcpToKmPpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2']} |
Hlt2CharmHadXiccp2XicpPimPip _Xicp2PpKmPipTurbo |
{'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadLcXic2HHH_LcpToKmPpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2']} |
Hlt2CharmHadXiccpp2LcpKmPimPip _Lcp2PpKmPipTurbo |
{'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadLcXic2HHH_LcpToKmPpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2']} |
Hlt2CharmHadXiccpp2LcpKmPipPip _Lcp2PpKmPipTurbo |
{'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadLcXic2HHH_LcpToKmPpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2']} |
Hlt2CharmHadXiccpp2LcpKpPimPip _Lcp2PpKmPipTurbo |
{'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadLcXic2HHH_LcpToKmPpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2']} |
Hlt2CharmHadXiccpp2XicpPim _Xicp2PpKmPipTurbo |
{'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadXiccpp2XicpPim_Xicp2PpKmPipTurboCombCombiner': ['MIPCHI2DV(PRIMARY) > -1.0'], 'Hlt2CharmHadLcXic2HHH_LcpToKmPpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0']} |
Hlt2CharmHadXiccpp2XicpPip _Xicp2PpKmPipTurbo |
{'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadXiccpp2XicpPip_Xicp2PpKmPipTurboCombCombiner': ['MIPCHI2DV(PRIMARY) > -1.0'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadLcXic2HHH_LcpToKmPpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2']} |
Hlt2CharmHadXicpToPpKmPipTurbo |
{'Hlt2CharmHadSharedDetachedLcChild_piFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_pFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadSharedDetachedLcChild_KFilter': ['MIPCHI2DV(PRIMARY) > 4.0'], 'Hlt2CharmHadLcXic2HHH_LcpToKmPpPipCombiner': ['AHASCHILD((MIPCHI2DV (PRIMARY)) > 16.0', 'MIPCHI2DV(PRIMARY) > 6.0', 'ANUM(MIPCHI2DV (PRIMARY) > 9.0) >= 2']} |
Tracks can be refitted as VELO tracks and their weight in the PV recalculated, thus enabling the influence of the track to be removed from the PV. Initial studies of this are shown