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Add Ks2pipiee TOS line

Carla Marin Benito requested to merge cmarinbe-Ks2pipiee-TOSLine into master

Following the conclusions of LHCb-PUB-2016-016, various changes have been included in the StrippingKshort2eePiPi module:

  • The StrippingKshort2eePiPi_PiPiLine, which used StdAllNoPIDsElectrons instead of StdDiElectronFromTracks, has been removed since it was much less efficient.
  • A new line, StrippingKshort2eePiPi_eeFromTracks_TOSLine, has been added aligning the cuts with the L0 and Hlt1 TOS requirements. Some of the previous cuts have been loosened and a TISTOStagger filter has been added.
  • The other line already present in this module, StrippingKshort2eePiPi_PiPiFromTracksLine, mainly selects TIS candidates. This line has been re-named as StrippingKshort2eePiPi_eeFromTracksLine, since the previous name was misleading.

Moreover, following the suggestions of the stripping liaison, some more changes have been included:

  • Both lines are now using N3BodyDecays instead of CombineParticles.
  • Separate prescale and postscale settings are used for each line.

After all these changes, the rate tests give:

image

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