{"artifact_id":"L1-487","layer":"L1","title":"Jet Reconstruction (Anti-kT)","domain":"Particle Physics","sub_domain":"QCD jets","physics_fingerprint":{"L_DAG":3.0,"title":"Jet Reconstruction (Anti-kT)","domain":"Particle Physics","carrier":"particle","primitives":["S.antikt.sequential_clustering","S.select","O.jet.energy_scale_correction"],"sub_domain":"QCD jets","noise_model":"pileup_detector_gaussian","problem_class":"parameter_estimation","solution_space":"jet_4vector_list","difficulty_delta":5,"integration_axis":"rapidity_phi_plane","sensing_mechanism":"sequential_jet_clustering"},"observable_profile":{"metric":"jet_energy_resolution_sigma_E_over_E","regime":"Existence of the recovered jet_4vector_list is guaranteed within the declared Omega bounds. Uniqueness holds on the measurement-supported subspace; out-of-support modes are controlled by declared priors. Stability is conditionally stable (kappa_eff ~= 100); pileup_contamination_residual dominates the stability cliff; the remaining mismatch parameters contribute higher-order bias terms. Pileup detector gaussian sets the irreducible data-fidelity floor.","secondary":"jet_mass_RMSE_GeV"},"size_tiers":{"center_spec":{"omega":{"pileup_mu":50,"jet_pt_GeV":200,"jet_radius_R":0.4,"N_particles_per_event":2000},"input_format":"measurement_only","problem_class":"parameter_estimation","forward_operator":"sequential_jet_clustering","epsilon_fn_center":"0.05 jet_energy_resolution_sigma_E_over_E"},"omega_bounds":{"pileup_mu":[0,200],"jet_pt_GeV":[30,5000],"jet_radius_R":[0.2,1.0],"N_particles_per_event":[100,10000]},"epsilon_bounds":{"jet_energy_resolution_sigma_E_over_E":[0.02,0.15]},"allowed_problem_classes":["parameter_estimation"],"allowed_omega_dimensions":["N_particles_per_event","pileup_mu","jet_pt_GeV","jet_radius_R"],"allowed_forward_operators":["sequential_jet_clustering"]},"hardness_fn":{"type":"epsilon_fn","delta":5,"kappa":1000.0,"metric":"jet_energy_resolution_sigma_E_over_E"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0xc80f843b96c36dfcd5bbf210445f7bb5402681f1fbe638f5ba69782ef1eb0166","chain_tx_hash":"0xec250d2cb078e8199e626dd1c0d0033243346ba321cc88deff4da7e3f9e9de48","chain_block":41555317}