Does it make sense to define this somewhere "centrally"?
This is not the only place where exactly the same vector is computed
git grep 2.97025
```
RecoParticleFlow/PFClusterProducer/src/SpikeAndDoubleSpikeCleaner.cc:    constexpr double cPhi[18] = {2.97025, 2.621184149601134, 2.272118299202268,
RecoParticleFlow/PFClusterTools/src/PFEnergyCalibration.cc:    retValue[0]=2.97025;
RecoParticleFlow/PFClusterTools/src/PFResolutionMap.cc:  cPhi[0]=2.97025;
RecoParticleFlow/PFProducer/src/PFElectronAlgo.cc:        float mphi=-2.97025;
RecoTauTag/RecoTau/src/AntiElectronIDMVA5GBR.cc:    cPhi[0] = 2.97025;
```