Skip to content

Fixing decay descriptor of Same Sign Lepton Fake Lepton lines for BsToKKTauTau

Upon validation of 2025 data, we have noticed that the decay descriptor of the BsToPhiTauTau_PhiToKK_ (TauToMu_SSMu_FakeMu, TauToE_SSE_FakeE, TauToPi_SSPi_FakePi) lines are wrongly configured leading to looking for FakeMu, FakeE and FakePi opposite sign rather than same sign.

This MR aims to correct these decay descriptors.

We prescaled quite harshly during the developments of these lines and upon BW testing on 2025 data we noticed that some of the prescales can be relaxed without affecting BW and helping quite a lot in our analysis.

TODO:

  • Fix BsToPhiTauTau_PhiToKK_TauToMu_SSMu_FakeMu line in algorithm definition
  • Fix BsToPhiTauTau_PhiToKK_TauToE_SSE_FakeE line in algorithm definition
  • Fix BsToPhiTauTau_PhiToKK_TauToPi_SSPi_FakePi line in algorithm definition
  • Adjust prescales

Testing

Testing using this snippet:

Turbo lines:

Assuming an HLT1 output rate of 1355471 and running over 100000 events

Branch File size (MB) BW (MB/s)
rd-devel-june25 32.44214776 439.7439046
This MR 32.38099452 438.9149903

BW difference: -0.82 MB/s Compare rates: compare-hlt2-rates.md

Sprucing lines:

Assuming an HLT1 output rate of 1355471 and running over 100000 events

Branch File size (MB) BW (MB/s)
rd-devel-june25 4.366695658 59.1892933
This MR 4.36743566 59.19932382

BW difference: 0.010 MB/s Compare rates: compare-spruce-rates.md

(NB: rebased from rd-devel-june25 (d43ccd0d))

Edited by Alex Chen Hu

Merge request reports

Loading