{"id":"W7078150967","doi":"10.48660/25080030","title":"Pi in the Sky: Neutron Stars with Exceptionally Light QCD Axions","year":2025,"lang":"en","type":"other","venue":"PIRSA","topic":"Geochemistry and Geologic Mapping","field":"Computer Science","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"Perimeter Institute","funders":"","keywords":"Axion; Quantum chromodynamics; Neutron star; Stars; Neutron","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0004156808,0.0006053212,0.0005789596,0.0006713709,0.001205073,0.001819936,0.000546502,0.0008163452,0.008510381],"category_scores_gemma":[0.001451805,0.0002939496,0.0002886857,0.0008803927,0.001011326,0.001258764,0.001415422,0.001168373,0.001216987],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0005198026,"about_ca_system_score_gemma":0.0003256326,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001045691,"about_ca_topic_score_gemma":0.001320116,"domain_scores_codex":[0.9998537,0.00004497873,0.000004086915,0.00003967619,0.00003186697,0.00002566558],"domain_scores_gemma":[0.999592,0.0001025336,0.0000759355,0.00005533933,0.00004152669,0.0001327384],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.0003422559,0.00003443701,0.005171087,0.0002107068,0.00003026861,0.00107839,0.0001187233,0.004598177,0.003241998,0.9384962,0.02907757,0.01760022],"study_design_scores_gemma":[0.00009782006,0.00002100099,0.004216226,0.00003825523,0.00002163229,0.001608258,0.0001259068,0.03459178,0.001637071,0.9418172,0.01579634,0.00002849738],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"other","genre_gemma":"empirical","genre_scores_codex":[0.4344267,0.005159297,0.07787446,0.007734769,0.001072348,0.00004635976,0.002503637,0.002830789,0.4683517],"genre_scores_gemma":[0.9653089,0.0009374827,0.01230648,0.0007444968,0.0004582484,0.00002267824,0.001061594,0.0002397042,0.0189203],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.008510381,"threshold_uncertainty_score":0.02847004,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.00911179119858322,"score_gpt":0.214838892187755,"score_spread":0.2057271009891718,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}