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SLB - Changes ahead of 2025 data taking

Description

This common SL MR is intended for changes to SL lines and builders to be merged ahead of data-taking in 2025 to reduce further lines with high rates, improve tape storage, and a few other fixes.

List of changes

As follows, the list of changes included by each MRs

Changes MR Impact on BW
Fix line names and decay descriptor !4437 (merged) None
Changes to b \to u l \nu lines !4440 (merged) Reduction
Baryonic \tau hadronic lines !4431 (merged) Reduction
Fake muon definition !4520 (merged) Increase
HLT1 filtering at HLT2 level !4525 (merged) Reduction
Changes to PID requirements in b\to l\gamma DD !4573 (merged) Small increase
Removal to b \to K \tau \nu lines and relaxing P_T requirements for \mu and e !4589 (merged) Not known
Increase of mass windows of J/\psi to include \psi(2s) !4619 (merged) and !4623 (merged) Increase
Optimise the selections for Bc2Bspi and Bc2Bsmunu !4651 (merged) Reduction
Prescale the LbToLcENu HLT2 line Committed in master Reduction
Tuning of XbToXcTauNu !4661 (merged) Reduction
Other tuning !4664 (merged) and !4663 (merged) Reduction
Split fake muon definition !4676 (merged) Reduction
Split B \to K \tau \nu lines from B \to K e/\mu \nu !4679 (merged) Reduction

Deadlines

Please be aware that all the changes provided in your own branch should be included in this MR before the SL internal deadline, to have time to trigger an integration test and study the output.

- SL deadline: 21/03/25

- RTA deadline: 28/03/25

  • 14/04/25

Changes in BW

Estimated impact in BW and rates for SL lines

Edited by Tommaso Fulghesu

Merge request reports

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