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RichRayTracing - Turn off the beam pipe intersection checks with raytracing photons for the CK rings.

Christopher Rob Jones requested to merge RichCKRingRayTrace-OptRingPointsNoBeamCheck into master

To see the changes w.r.t. !888 (merged)

https://gitlab.cern.ch/lhcb/Rec/compare/RichPhotonQuarticReco-TurnOffUnambigPhotonAndBeamChecks...RichCKRingRayTrace-OptRingPointsNoBeamCheck

This MR turns off the beam pipe intersection checks for the ray traced photons used for the CK rings. Not only does it save CPU, but also (a little to my surprise) improves the PID performance a little. See the attached plot, for the Upgrade simulations.

RichDLLk-RichDLLpi_Long_P3-100_Pt0.5-100.pdf

Edited by Marco Cattaneo

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