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Draft: Update cluster resolutions and add pseudoSize information

Louis Henry requested to merge lohenry-clusterResolutions into master

Following the discussion in https://indico.cern.ch/event/874111/, we decided to:

  • change the "new" cluster resolutions to the RMS of the distribution
  • report the pseudoSize in the PrHit and PrScifiHit classes

Still to discuss:

  • how to report the full resolution model to the track fit?

The full resolution model (without angular dependencies) would be reported by 6 variables, nearly doubling the size of the PrHit class. Alternatively, we propose in this MR to only propagate the pseudoSize information, and then to provide a helper class (or anything that would do it) which uses this information to deliver the most precise resolution model.

Presented and approved in https://indico.cern.ch/event/943209/

Edited by Peilian Li

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