Wire 2024/2025 corrections and weight_base_cmb

[kandrosov]

Summary

Corrections for Run3_2024 / Run3_2025 (Summer24 NanoAODv15):

• PU: 2025 golden JSON + Summer24 69.2 mb weights
• Tau: 2025 TAU folder, VSjet wp_VSmu and VSmu extra args
• Electron: 2025 EGM eleID; evaluate 2025 with 2024Prompt / 2025Prompt as required by the JSON
• Jet: 2025 data JEC Winter25Prompt25_V3_DATA, run letters B–G
• Fatjet: 2025 fallback
• HLT: 2025 electron HLT falls back to the 2024 EGM file; local CrossEleTau JSONs still use 2023PromptD
• Recoil: 2025 reuses the 2024 JSON
• weight_base_cmb written at AnaTupleMerge
• A correction whose modes.<stage> is none is not applied at that stage

Testing

Exercised through the analysis HistPlot chains on Run3_2024 and Run3_2025 for HH_bbtautau, HH_bbWW and H_mumu (--test 1000, TestModel).

[Copilot]

Pull request overview

This PR wires up Monte Carlo corrections for the new Run3_2024 / Run3_2025 data-taking periods (Summer24 NanoAODv15), plus 2026_Summer24 placeholders, across the correction modules (PU, tau, electron, jet, fatjet, HLT, recoil, jet-veto, muon). It also adds a combined normalisation weight (weight_base_cmb) computed at the AnaTupleMerge stage using FLAF's shared_mc helpers, so shared-MC samples can be reweighted against an in-era denominator. This extends the framework's period-dependent correction plumbing without altering existing Run2/2022/2023 behavior.

Changes:

• Add 2024/2025 (and 2026 placeholder) period entries and JSON/tag mappings across all correction modules, including new year-specific correctionlib evaluate signatures for tau VSjet/VSmu and a refactored electron_id_sf_year helper (with a new unit test).
• Add electron/HLT/recoil/fatjet fallbacks where dedicated 2025/2026 JSONs are not yet published, and expand 2025 jet run letters (B–G) while dropping the per-era Run{} JEC data tag.
• Add weight_base_cmb computation in Corrections.py driven by shared_mc, including a new 2026 golden JSON data file and PU 69.2 mb weight wiring.

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
triggersRun3.py	Adds ele_year/cross_ele_year, _json_trg_key fallback helper, and EGM/HLT year selection for 2025/2026
triggersRun3.h	Extends supported-era gate to include 2026_Summer24
tau.py	Adds 2024/2025/2026 tau JSON era keys and per-period SF-source filtering
tau.h	Year-specific evaluate argument lists for VSjet (2025) and VSmu (2024/2025)
electron.py	Extracts electron_id_sf_year helper; wires 2025/2026 eleID
test_electron_id_sf_year.py	New unit test extracting and exercising electron_id_sf_year in isolation
pu.py	Adds golden-JSON keys and a PU file-suffix map for 2025/2026
mu.py	Adds 2026_Summer24 placeholder source lists
jet.py	Adds 2026 tags, expands 2025 run letters (B–G), removes per-era Run{} data tag
fatjet.py	Adds 2024/2025/2026 AK8 SF fallbacks to the 2023postBPix file
JetVetoMap.py	Adds 2026 veto-map placeholder
bosonicRecoil.py	Reuses 2024 recoil JSON for 2025/2026
CorrectionsCore.py	Adds 2026 POG folder entries and fills 2025 LUM/TAU paths
Corrections.py	Adds weight_base_cmb / shared_mc in-era denominator logic
data/golden_json/Cert_Collisions2026_401624_403937_Golden.json	New 2026 certified-lumi JSON

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[kandrosov]

tested with cms-flaf/FLAF#300