{"paper":{"title":"Single-Spin Asymmetry in Inclusive $\\pi^0$ Production Measured at the Protvino 70 GeV Accelerator","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Davidenko, A. Fedorov, A. Lukhanin, A. Meschanin, A. Neganov, A. Vasiliev, A. Yakutin, D. Morozov, K. Shestermanov, L. Nogach, L. Soloviev, N. Borisov, P. Semenov, S. Nurushev, V. Grishin, V. Khodyrev, V. Kravtsov, V. Matafonov, V. Medvedev, V. Mochalov, Yu. Matulenko, Yu. Melnick, Yu. Plis, Yu. Usov","submitted_at":"2003-12-03T08:06:22Z","abstract_excerpt":"Single Spin Asymmetries (SSA) $A_N$ measured in the two reactions at the Protvino 70 GeV accelerator are presented. $A_N$ in the reaction $p+p(pol)->\\pi^0+X$ in the central region is close to zero within the error bars. SSA in the reaction $\\pi^- +p(pol)->\\pi^0+X$ in the polarized target fragmentation region is equal to $(-15 \\pm 4)%$ at $|x_F|>0.4$. There is an indication that the asymmetry arises at the same pion energy in the center of mass system."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0312014","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ex/0312014/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}