Fast-simulation datasets for boosted $bc$-tagging studies at the LHC

This public dataset accompanies the boosted $bc$-tagging study presented in the paper: “Novel $|V_{cb}|$ extraction method via boosted $bc$-tagging with in-situ calibration”, arXiv:2503.00118. The associated code can be found at this URL: https://github.com/PKU-Hep-Group/boosted-wcb Production Details The dataset was generated using the following software tools: MadGraph5_aMC@NLO v2.9.18 for LO matrix element calculation in pp collisions at $\sqrt{s}=13$ TeV LHAPDF 6 with NNPDF3.1 NNLO PDF sets PYTHIA 8.3 for parton showering DELPHES 3.5 for fast simulation of detector response of object reconstruction, including: FastJet package for jet clustering JetClass-II Delphes cards (incorporating track smearing + pileup emulation + pileup mitigation via PUPPI) Sophon and SophonAK4 models to perform realistic jet tagging of both small- and large-radius (R=0.4 and 0.8) jets (See details in SophonAK4’s Hugging Face repository) Dataset Information 1. Boosted channel Datasets in the trig1L_1fj directory are used for boosted-topology analyses. The derived n-tuples contain events passing the following selections: Trigger: ≥1 isolated electron or muon(p_T > 24 GeV for electrons, >32 GeV for muons; with η and isolation cuts) Preselection: ≥1 boosted jet (R = 0.8) present in the event Analysis selection: ≥1 boosted jet (R = 0.8) not overlapping with the triggered lepton (ΔR(jet, lepton) > 0.8)(Events failing this are included as empty entries for uniformity.) The generator-level configuration is optimized to target the boosted phase space without introducing phase-space bias. Included samples: TTbarSL_FJ_ntuple_part{1,2,3} — SM $t\bar{t}$ with semi-leptonic decays TTbarSL_WToCB_FJ — SM $t\bar{t}$ with $W \to bc$ hadronic decays WJetsToLNu_HT150* — SM W+jets with leptonic decays TTbarSL_TToBHpmToBBC_MH*_FJ — BSM $t\bar{t} \to bH^\pm bW^\mp$, with $H^\pm \to bc$, fixed $m_{H^\pm}$ at 60, 70, ..., 160 GeV TTbarSL_TToBHpmToBBC_VarMH_FJ — Same as above, with $m_{H^\pm}$ uniformly sampled within 50–170 GeV 2. Resolved channel Datasets in the trig1L_4jets directory support resolved-topology analyses. n-tuples contain events passing: Trigger: same single-lepton trigger as in the boosted channel Preselection: ≥4 jets (R = 0.4) with p_T > 20 GeV Analysis selection: ≥4 jets (R = 0.4) with p_T > 20 GeV and ΔR(jet, lepton) > 0.4(Non-passing events are included as empty entries.) Similarly, the generator-level configuration is optimized to target the multijet phase space without introducing phase-space bias. Included samples: TTbarSL — SM $t\bar{t}$, semi-leptonic TWSL — SM single-top $tW$, semi-leptonic WWSL — SM diboson $WW$, semi-leptonic *_WToCB — Variants with hadronic $W \to bc$ decays WJetsToLNuPlus2J_Delphes4J — SM W+jets with leptonic W decay 3. Inclusive samples (for boosted channel) Datasets in the trig1L directory contain events passing only the trigger requirement: Trigger: same as above Analysis selection: ≥1 boosted jet (R = 0.8) with ΔR(jet, lepton) > 0.8(Non-passing events are included as empty entries.) Included samples: TWSL WWSL TWSL_WToCB, WWSL_WToCB(Same definitions as above) Usage Detailed information is available in the GitHub repository: https://github.com/PKU-Hep-Group/boosted-wcb.