{"paper":{"title":"Evidence of partonic collectivity in OO collisions through the measurement of $\\phi$, K$^0_{\\rm S}$, and $\\Lambda$ elliptic flow","arxiv_id":"2610.36237","primary_cat":"nucl-ex","submitted_at":"2026-10-26T20:13:31+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. 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in a small collision system.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.89,"main_claim_p":0.05,"quantitative":false,"quantitative_p":0.24,"role_probabilities":{"gap":0.28,"method":0.0,"result":0.01,"background":0.01,"limitation":0.0,"future_work":0.0,"contribution":0.7,"interpretation":0.0}},{"i":2,"p":0.96,"id":"s2","own":true,"role":"result","text":"At low $p_{\\rm T}$, a characteristic mass ordering of $v_{2}$ is observed, consistent with collective expansion of the system, in which heavier hadrons are shifted to higher $p_{\\rm T}$ by a common velocity field.","hedge":{"p":0.58,"label":"hedged_possibility"},"own_p":0.92,"main_claim_p":0.08,"quantitative":true,"quantitative_p":0.64,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.96,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.04}},{"i":3,"p":1.0,"id":"s3","own":true,"role":"result","text":"At intermediate $p_{\\rm T}$, above 3 GeV/$c$, a baryon$-$meson splitting with a $10\\sigma$ significance emerges, with the $\\Lambda (\\overline{\\Lambda})$ baryon exhibiting larger $v_{2}$ values than mesons, while, despite its mass being close to the mass of the $\\Lambda$, the $\\phi$ follows the K$^{0}_{\\rm S}$.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.95,"main_claim_p":0.12,"quantitative":true,"quantitative_p":0.99,"role_probabilities":{"gap":0.0,"method":0.0,"result":1.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.0}},{"i":4,"p":1.0,"id":"s4","own":true,"role":"interpretation","text":"The $\\phi$ meson behavior disfavors a purely mass-driven interpretation of the observed patterns and supports the role of hadronization via quark recombination from a collectively flowing partonic 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