{"paper":{"title":"A Barnett-Like Effect in Relativistic Heavy-Ion Collisions","arxiv_id":"2610.35310","primary_cat":"nucl-th","submitted_at":"2026-10-26T12:13:32+00:00","version_compiled":"v1"},"notice":"Every quoted sentence is the authors' text from the arXiv listing abstract. Labels and probabilities are the outputs of classifier-1.13.0 on the question bank abstract-p1-20260923, exactly as returned. No sentence in this record was written by a language model.","schema":"pith.compiled-record/v0","status":"compiled","abstract":{"source":"arXiv listing abstract v1","sentences":[{"i":0,"p":1.0,"id":"s0","own":false,"role":"background","text":"The Barnett effect refers to the spontaneous magnetization or polarization of rotating matter via spin-orbit coupling, a fundamental phenomenon observed across a multitude of physical systems down to atomic scales.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.03,"main_claim_p":0.03,"quantitative":false,"quantitative_p":0.15,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.0,"background":1.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.0}},{"i":1,"p":0.95,"id":"s1","own":true,"role":"contribution","text":"Here, we demonstrate that this effect extends to subatomic regimes within relativistic heavy-ion collisions, where the most vortical fluid ever created in terrestrial laboratories is produced and the orbital angular momentum is transferred to emitted hadrons via spin-vorticity coupling.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.8,"main_claim_p":0.53,"quantitative":false,"quantitative_p":0.41,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.05,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.95,"interpretation":0.0}},{"i":2,"p":0.97,"id":"s2","own":true,"role":"result","text":"By performing transport simulations spanning a broad energy range, we discover a nearly-linear scaling relation between the global spin polarization of $\\Lambda$ hyperons and the source tilt angle extracted via two-pion femtoscopic correlations.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.97,"main_claim_p":0.34,"quantitative":false,"quantitative_p":0.43,"role_probabilities":{"gap":0.0,"method":0.01,"result":0.97,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.02,"interpretation":0.0}},{"i":3,"p":0.98,"id":"s3","own":true,"role":"interpretation","text":"This scaling reveals that global $\\Lambda$ polarization induced by the local vorticity field is modulated by the inclined geometry of the produced strongly-interacting nuclear matter in these collisions.","hedge":{"p":0.99,"label":"asserted"},"own_p":0.83,"main_claim_p":0.47,"quantitative":false,"quantitative_p":0.05,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.02,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.98}},{"i":4,"p":0.77,"id":"s4","own":true,"role":"interpretation","text":"Supported by existing experimental measurements, our results unravel a geometry-modulated Barnett-like effect at the femtometre ($10^{-15}$ m) scale.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.83,"main_claim_p":0.69,"quantitative":true,"quantitative_p":0.72,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.2,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.03,"interpretation":0.77}}]},"compiled":{"main_claim":{"p":0.83,"text":"Supported by existing experimental measurements, our results unravel a geometry-modulated Barnett-like effect at the femtometre ($10^{-15}$ m) scale.","location":"abstract s4","hedge_strength":{"p":1.0,"label":"asserted"}},"provenance":{"route":{"via":"TypeSafe API","model":"classifier-1.13.0","endpoint":"https://api.typesafe.ai/v1/systemone","provider":"TypeSafe"},"packing":"one request per 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