Signal and backgrounds for the double Higgs boson decaying to two photons and two b-quarks at 13.6 TeV

This dataset contains simulated event samples for machine-learning studies of Higgs boson pair production in the HH->bbyy final state. The samples include Standard Model gluon-fusion and vector-boson-fusion HH production, anomalous VBF HH scenarios with varied K2V, and the main background processes: gammagamma+jets, single-Higgs production, ttH, and ZH. Each HDF5 file stores an event-level table with reconstructed object kinematics, event weights, topology variables, boosted/resolved category flags, and reconstructed Higgs-pair observables. Variables include photon, b-jet, large-radius jet, and VBF-jet four-vector components, and event-level metadata such as cross section, luminosity, branching ratio, and selection-region labels. Variable group Variables Definition Photons photon1_pt, photon1_eta, photon1_phi, photon2_pt, photon2_eta, photon2_phi Transverse momentum, pseudorapidity, and azimuthal angle of the leading and sub-leading photons. Resolved b-jets bjet1_pt, bjet1_eta, bjet1_phi, bjet1_m, bjet2_pt, bjet2_eta, bjet2_phi, bjet2_m Kinematics and mass of the leading and sub-leading small-radius b-tagged jets. Boosted large-R jet fatjet1_pt, fatjet1_eta, fatjet1_phi, fatjet1_m, fatjet1_flavor, fatjet1_btag Kinematics, flavor label, and b-tagging information for the leading large-radius jet used in boosted selections. Resolved VBF jets VBFjet1_pt, VBFjet1_eta, VBFjet1_phi, VBFjet1_m, VBFjet2_pt, VBFjet2_eta, VBFjet2_phi, VBFjet2_m Kinematics and mass of the two VBF-tagging jets in the resolved topology. Boosted VBF jets boostedVBFjet1_*, boostedVBFjet2_* Kinematics and mass of the VBF-tagging jets used in the boosted topology. VBF topology mjj, deta, boostedmjj, boosteddeta Dijet invariant mass and absolute pseudorapidity separation of the VBF jet pair, for resolved and boosted selections. Missing transverse momentum met_et, met_phi Magnitude and azimuthal angle of missing transverse momentum. Event weights event_weight, event_lumi, event_xsec, event_br Per-event weight, luminosity normalization, process cross section, and branching-ratio factor. Event counts event_ncentral, event_nforward, event_ntrks, event_nfatjets Number of central jets, forward jets, tracks, and large-radius jets in the event. Event categories event_isBoosted, event_isResolved Boolean flags identifying whether the event passes the boosted or resolved topology selection. Diphoton Higgs candidate Hyy_pt, Hyy_eta, Hyy_phi, Hyy_m Reconstructed four-vector components of the H-> yy candidate. bb Higgs candidate Hbb_pt, Hbb_eta, Hbb_phi, Hbb_m Reconstructed four-vector components of the H->bb candidate in the resolved topology. Boosted HH system boosted_HH_pt, boosted_HH_eta, boosted_HH_phi, boosted_HH_m Reconstructed Higgs-pair system in the boosted topology. Truth level objects H1_*, H2_*, b1_*, b2_*, g1_*, g2_* truth level reconstructed Higgs, b-jet, and photon object four-vectors kept for analysis cross-checks.